List of Phi Brain: Puzzle of God episodes

Phi Brain: Puzzle of God is a 2011 Japanese anime television series produced by Sunrise. The story follows a genius puzzle solver named Kaito Daimon who, after receiving a bangle that increases his brain power under stress, is challenged to several life-or-death puzzles by a mysterious organization called the POG. The first season aired on NHK Educational TV from October 2, 2011 to April 1, 2012, with the second season airing between April 8, 2012 and September 23, 2012.^[1] A third season began airing from October 6, 2013.^[2] The anime has been licensed in North America by Sentai Filmworks.

The series uses seven pieces of theme music, three opening themes and four ending themes. For the first season, the opening theme is "Brain Diver" by May'n, while the ending theme is "Hologram" (ホログラム, Horoguramu) by Natsumi Kiyoura. For the second season, the opening theme is "Now or Never" by Nano while the ending theme is "Super Step" (スーパーステップ, Sūpā Suteppu) by Ammoflight. For the third season, the opening theme is "Destiny" by neko while the ending theme is "Say Yeah!" by the Genius Terrace Set consisting of Shintarō Asanuma, Kaori Shimizu, Jun Fukuyama, Kouki Miyata and Satsuki Yukino. "diamond secret" by Raetsel (Minori Chihara) and is used as the ending theme in season 3, episode 9. Two insert songs are used in the first season.

Episode list

Season 1

No.	Title	Original air date
01	"The Contract Hidden in the Labyrinth" Transliteration: "Meikyū ni Hisomu Keiyaku" (Japanese: 迷宮にひそむ契約)	October 2, 2011 (2011-10-02)[3]
Kaito Daimon, a genius at solving puzzles, is given a strange device and receives an invite to solve a dangerous puzzle inside some ruins. Going with his friend Nonoha Itou, he makes his way through the strange maze, managing to find a secret solution thanks to Nonoha's help. Arriving at the center of the maze, Kaito finds a strange bangle known as Orpheus, which attaches itself to his arm. After this happens, the room they are in is sealed off, and Kaito is given a puzzle in which he is told to pull a correct lever to stop the pillars holding the ceiling up breaking apart. As Kaito reaches wit's end, the bangle on his arm glows and Kaito enters a state where he becomes able to see the puzzle's solution.
02	"Philosopher's Reward" Transliteration: "Kenja no Hōshū" (Japanese: 賢者の報酬)	October 9, 2011 (2011-10-09)[4]
In his powerful state known as 'Phi-Brain', Kaito manages to solve the puzzle, allowing them both to escape the ruins. Later, Kaito becomes annoyed by a puzzle solver named Gammon Sakanoue, who carries the title 'Galilleo'. As Kaito receives a request to solve another puzzle, Gammon tries to claim it for himself and ends up joining Kaito and Nonoha. The puzzle in question is a life-sized sliding puzzle in which the player must get their car out of the puzzle within a time limit before it is crushed by a falling truck. As Gammon nearly completes the puzzle, the puzzle giver cuts off the ability to move the car they are in, supposedly leaving them with no solution. However, Kaito once again enters his Phi-Brain state and manages to use the other vehicles in the puzzle to push their car out of the way before they are crushed.
03	"The Melancholy of a Boy Genius" Transliteration: "Tensai Shōnen no Yūutsu" (Japanese: 天才少年の憂鬱)	October 16, 2011 (2011-10-16)[4]
Kaito meets a boy genius solver named Cubic Galois, who carries the title of 'Edison' and prefers mathematics over puzzles. He attaches a strange bracelet onto Kaito's arm, which causes his head to hurt whenever he thinks about puzzles. At this time, Kaito, Nonoha and Gammon are called to solve a puzzle, with the city rigged to explode if they fail. Though Cubic tries to make things harder for Kaito to make him give up on puzzles, he soon learns that the puzzle giver is serious about blowing up the city. With less than two minutes remaining, Kaito enters his Phi-Brain state and solves the puzzle with a second to spare. Admiring his skill, Cubic apologizes to Kaito and removes the bracelet.
04	"The Girl in the Secret Room" Transliteration: "Misshitsu no Shōjo" (Japanese: 密室の少女)	October 23, 2011 (2011-10-23)[4]
Kaito is given a Sage Puzzle to solve on the weekend, where he is to be partnered with Ana Gram, an art enthusiast who holds the title of 'Da Vinci'. They visit the mansion of a late artist, with its butler revealed to be a Giver from the POG. Kaito and Ana are trapped in a room which will fill with gas if they don't solve the puzzle. Presented with a jigsaw containing various famous paintings, Kaito and Ana work together to solve the puzzle, the treasure of which is a series of paintings the painter dedicated to his wife. Back at school, Kaito and Nonoha are surprised to find that Ana is a boy.
05	"Invitation to a Nightmare" Transliteration: "Akumukara no Shōtaijō" (Japanese: 悪夢からの招待状)	October 30, 2011 (2011-10-30)[4]
The POG extend an invitation to Kaito, who is accompanied by Nonoha and Gammon, to their headquarters. As the three make their way through the maze to meet with the POG's head, Kaito notices something eerily familiar about the puzzles they have to solve. This particularly holds true to the final puzzle, which is similar to a puzzle that took the lives of Kaito's parents. As Kaito goes berserk at the memory of it, Cubic helps Nonoka snap him out of it by shocking him with her cookies. Since this causes Kaito to pass out, the mysterious POG head cancels the meeting. After Kaito recovers, he finds himself having trouble solving even a simple puzzle.
06	"Restoration Towards the Light" Transliteration: "Hikari e no Fukkatsu" (Japanese: 光への復活)	November 6, 2011 (2011-11-06)[4]
Kaito is still tormented by his memories and unable to solve puzzles. Cubic researches into the Orpheus bangle, theorizing Kaito's breakdown was a result of his brain power being completely controlled by emotions. He advises Kaito to not solve anymore puzzles, as another breakdown could put his life in danger. However, because of a promise he made when he was younger, Kaito can't let puzzles go and accepts another puzzle request from the POG. Kaito soon comes across a complex Kenja Puzzle with Gammon and Nonoha's lives at stake. As Kaito goes through another breakdown, he remembers his promise and manages to regain his puzzle solving skills and solve the puzzle.
07	"Nonoha's Title" Transliteration: "Nonoha no Shōgō" (Japanese: ノノハの称号)	November 13, 2011 (2011-11-13)[4]
As Nonoha visits some kindergarten students, their teacher, Madoka, gives Kaito a letter, which the others suspect to be a love letter. Suspicious about the contents, Nonoha and Gammon follows Kaito to the meeting point, where it's revealed Madoka is a Giver following in her late fiancée's footsteps. Kaito, Nonoha, Gammon and Madoka, along with some children, become trapped in a Kenja Puzzle inside an abandoned building, which wasn't what Madoka expected. Nonoha works to calm the children down while Kaito solves the puzzles. When the last puzzle gets destroyed due to falling debris, Nonoha's photographic memory allows her to recreate the puzzle, allowing Kaito, Gammon and the children to solve it, revealing a statue of Florence Nightingale which Nonoha donates to poor children. As a result, Nonoha ends up with the title 'Nightingale', which doesn't exactly please her.
08	"Crabs! Hot Springs! Puzzle Kings!" Transliteration: "Kani! Onsen! Pazuru-ō!" (Japanese: カニ！温泉！パズル王！)	November 20, 2011 (2011-11-20)[4]
Kaito is contacted by Genius Okudera, a man he once saved from a ruin, who invites him, Nonoha and Ana to a puzzle-themed hotel resort in Hokkaido to solve an alleged Kenja Puzzle being displayed as the centerpiece. After spending a day of activities, Kaito starts to solve the puzzle the next day, becoming suspicious that there aren't any traps involved. As Kaito comes close to solving the puzzle, which he deduces to not be a Kenja Puzzle, he almost succumbs to sabotage but is saved by Nonoha and Ana. Upon solving the puzzle, they find the treasure is a view of nature which has become ruined because of construction of an amusement park. Having painted a picture of what the landscape originally looked like, Ana helps the hotel owner remember the times he spent with his grandfather who created the puzzle, deciding to cancel construction and work on rebuilding the forest.
09	"The Fallen Apple and the Continuing Road" Transliteration: "Ochita Ringo to Michi no Tsuzuki" (Japanese: 落ちたリンゴと道の続き)	November 27, 2011 (2011-11-27)[4]
As Root Academy prepares for a cultural festival, where Kaito finds himself reluctantly entered into a crossdressing contest, the principal, Baron Kaidou, agrees to install a Kenja Puzzle within the academy. Just as Kaito gets into his crossdress, he learns that Nonoha has been taken hostage for the Kenja Puzzle, in which he must eat apples from truth telling dwarves while avoiding poisoned ones before the setting burns down. Kaito soon learns from the Giver that granted him Orpheus, who is secretly the student president, Souji Jikukawa, that important information needed to solve the puzzle has been intentionally left out. Souji provides the remaining information for the puzzle, allowing Kaito to solve it and free Nonoha, before getting help from Cubic to save them from the collapsing area.
10	"Welcome to the Queen's Kingdom" Transliteration: "Joō no Kunie Yōkoso" (Japanese: 女王の国へようこそ)	December 4, 2011 (2011-12-04)[4]
As Kaito dreams of appearing on a TV puzzle show hosted by Elena "Antoinette" Himekawa, Gammon, who had been Elena, jumps in to protect her when it looks like she is being cornered, though she is not too happy about the rescue. As a POG Giver, Elena is asked by the headquarters president to bring Kaito, Gammon and Nonoha to a Kenja Puzzle. They are trapped in a puzzle suspended over a pit in which Kaito is given the option to sacrifice his friends to receive hints, while Gammon and Nonoha are given the option to either sacrifice themselves, or make Kaito fall instead. As Elena tempts the others to sacrifice Kaito, she is surprised about how much faith they have in Kaito. As Kaito struggles near the end, the Orpheus bangle kicks in and he manages to solve the puzzle just in time.
11	"The Queen's Counterattack" Transliteration: "Joō-sama no Gyakushū" (Japanese: 女王様の逆襲)	December 11, 2011 (2011-12-11)[4]
Elena enlists the help of Kaito and his friends as extras in a new sentai show she is starring in. Later that night, Elena brings everyone together for a Kenja Puzzle in which they must construct a three-dimensional puzzle within a time limit or else be electrocuted. As Elena makes the puzzle harder by throwing in a remote controlled UFO in the works, the POG president Herbert Muller sends in more explosive variants against Elena's wish. After everyone works together to stop the bombs and protect Elena, Kaito enters his Orpheus state and solves the puzzle in the last minute, revealing the treasure to be a puzzle book Elena had when she was younger. Meanwhile, the HQ President is relieved of his duty for his unfair ways.
12	"Puzzle Time Reunion" Transliteration: "Saikai no Pazuru Taimu" (Japanese: 再会のパズルタイム)	December 18, 2011 (2011-12-18)[4]
Kaito is surprised to meet his childhood friend, Rook Banjou Crossfield, who unbeknownst to him is the head of POG Japan, and learns he is to become an exchange student at Crossfield Academy in England. Upon arriving at the academy, Kaito and Rook spend some time exploring and reminiscing about old times, particularly concerning an old man who taught them about puzzles. While exploring a maze from their childhood, they discover a curious path leading to a Kenja Puzzle. Kaito is trapped inside it and is forced to solve the puzzle while avoiding deadly saw blades. It is soon revealed that this is a more extreme Kenja Puzzle known as the Fool's Puzzle.
13	"The Towers of Parting" Transliteration: "Ketsubetsu no Tō" (Japanese: 決別の塔)	December 25, 2011 (2011-12-25)[4]
As Kaito pushes through the puzzle, believing Rook is in danger, Nonoha and the others decide to fly to England, learning the truth about Fool's Puzzles from Souji on the way. As Kaito reunites with Rook, he tells him about their old master, Jin Makoto. As the puzzle room starts to fill with fire, Kaito's Orpheus state activates and he reaches the top, only to find there is no exit. It is then that Rook reveals he is a POG giver who created the puzzle and wanted Kaito to achieve the Phi Brain. Suddenly, the uppermost platform crumbles and collapses from beneath Kaito's feet due to the intense heat and fire damage. As Kaito plummets down the middle of the shaft, Rook dives after him and saves him from falling into the fire and the spike pit at the bottom of the shaft. Rook then leaves him outside the front door to the chapel face down and unconscious in the rain for Nonoha to later find.
14	"True Worth of a Friend" Transliteration: "Yūjō no Shikaku(lit. 'Qualification of Friendship')" (Japanese: 友情の資格)	January 8, 2012 (2012-01-08)[4]
As Kaito remains unconscious in hospital, Cubic is invited by Rook to take on a puzzle and accepts it, wanting to prove his friendship to Kaito. He comes to an abandoned military base where a different POG Giver gives Cubic a math puzzle to solve, where his failure will result in him being blown up by a tank. Meanwhile, Kaito regains consciousness and explains his situation with Rook to the others. Cubic is given the chance to escape, but he remains determined and manages to solve the puzzle at the last second. The Giver reveals that Rook made the puzzle when he was five, which makes Cubic feel unworthy of being Kaito's friend in comparison.
15	"Blue Sun, Red Moon" Transliteration: "Aoi Taiyō, Akai Tsuki" (Japanese: 蒼い太陽、緋い月)	January 15, 2012 (2012-01-15)[4]
Kaito becomes angry when he notices Rook to have done something to Cubic. He and Nonoha go to one of Rook's old living quarters, where they learn of Rook's disturbing childhood. After hearing from Nonoha about some ruins where Kaito and Rook used to hang out, Ana goes to investigate and encounters a POG Giver, who presents a maze-type Kenja Puzzle, which Ana solves easily. However, things get hectic when Gammon and Cubic attempt to rescue him, but Ana makes it out okay, retrieving a wooden puzzle Rook made for Kaito, the sight of which also surprises Rook himself.
16	"Labyrinth of Beheading" Transliteration: "Danzai no Rabirinsu" (Japanese: 断罪の迷宮)	January 22, 2012 (2012-01-22)[4]
With the planes back to Japan allegedly taken over by the POG, Kaito and the others travel to Venice instead. As Souji goes to see Rook concerning the Phi Brain project, Gammon deduces that their transfer to Italy was the work of the POG and goes alone to take on a Fool's Puzzle, in which he must travel through numbered gates on a gondola. As Gammon reaches near the end of the puzzle, he finds the final gate difficult to reach and the rising tide putting him in danger. However, Kaito arrives and uses his Orpheus state to figure out how to reach the end of the puzzle safely, much to Gammon's annoyance.
17	"Truth" Transliteration: "Shinjitsu" (Japanese: 真実)	January 29, 2012 (2012-01-29)[4]
As Kaito and the others return to Japan, they find the principal, Baron Kaido, has gone missing. Later on, Kaito is summoned by the POG to the place where his parents died. As Kaito and the others arrive at the location and find Baron, Kaito receives a video revealing his parents were POG Givers monitoring his potential for Phi Brain. Baron further reveals that they weren't his real parents, as well as revealing himself to be a POG member. Baron decides to tell Kaito everything about the Phi Brain project, revealing that his parents went against the POG's orders and took the Fool's Puzzle that killed them in place of Kaito to protect him. Baron shows Kaito another video, showing that, despite not being his real parents, they truly loved him like their own child, which also shocks Rook. Determined to give his parents a proper farewell, Kaito activates his Orpheus state and solves the Fool's Puzzle once and for all. After telling Kaito that Jin is being held captive by the POG, he leaves and is captured by the POG for his betrayal.
18	"Treason against the Light" Transliteration: "Hikari e no Hangyaku" (Japanese: 光への反逆)	February 5, 2012 (2012-02-05)[4]
Following the incident, Cubic and Ana start avoiding Kaito, believing they can no longer follow him, much to the dismay of Nonoha. Meanwhile, Gammon, who is contemplating whether he should become a Giver, becomes concerned that the POG may start targeting Nonoha. He calls Kaito and Nonoha out, saying that they should stay away from each other. When they object, Gammon challenges Kaito in a puzzle of his own design, in which they must attempt to trap each other in laser walls. After Kaito uses his Orpheus state to solve the puzzle, Gammon walks off and decides to become a POG Giver.
19	"Illumination of Betrayal" Transliteration: "Uragiri no Shōmei" (Japanese: 裏切りの証明)	February 12, 2012 (2012-02-12)[4]
Kaito is visited by Gammon's little sister, Miharu, who is worried that she hasn't heard from Gammon. Meanwhile, Gammon arrives at the POG headquarters and is challenged by the Givers to earn the right to see Rook. He is eventually challenged by Rook's right hand man, Bishop, to face a puzzle in which he must manipulate lanes on a motorbike circuit to catch up to his opponent. Kaito and Nonoha are meanwhile approached by Elena, who tells them about Gammon joining the POG and gives Nonoha a puzzle which she solves herself. As Gammon clears the puzzle and earns the right to join Rook, Kaito experiences a strange reaction coming from the Orpheus bangle.
20	"The Accelerating Challenger" Transliteration: "Kasokusuru Chōsensha" (Japanese: 加速する挑戦者)	February 19, 2012 (2012-02-19)[4]
As Miharu has dinner with Nonoha, Kaito faces a deadly puzzle against Gammon, who seeks something known as The God Scrolls in order to complete the Puzzle of God. As Kaito nears the end of the puzzle, he sees a vision in which his friends die, which causes him to hesitate and make an error, though Bishop arrives and ends the puzzle before Gammon can win. The next day, Kaito sees more of his vision, predicting the destruction of the world if the Puzzle of God is solved. Believing this to be a vision of the future, Kaito resolves to solve the Puzzle of God himself.
21	"Shining Tears" Transliteration: "Hikaru Namida" (Japanese: 光る涙)	February 26, 2012 (2012-02-26)[4]
As Kaito experiences strange occurrences in which he loses focus of everything else when he glances at puzzles, Cubic reveals this is the result of Kaito's brain speed reaching abnormal levels, advising him not to solve puzzles anymore. As Kaito ignores his advice and prepares to face another Fool's Puzzle, Cubic asks for Souji's help in hacking into POG's network. Although Kaito is able to quickly solve the puzzle, he remains unable to see anything, but Nonoha arrives and helps him return to normal. As Cubic and Souji successfully hack into the POG network, Baron follows Rook to where Jin is held captive, finding that Rook also has an Orpheus bangle.
22	"The One to Carry on His Will" Transliteration: "Kokorozashi wo Tsugumono" (Japanese: 志を継ぐもの)	March 4, 2012 (2012-03-04)[4]
After finding Jin a complete wreck, Baron explains to Gammon about how POG's leader, Count Pythagoras, intends to bring about a conflict between Kaito and Rook in order to open the gate to the Puzzle of God, while Kaito reads up on what Cubic had found on POG's network. Years ago, Pythagoras once attempted to achieve Phi Brain using Jin, who contracted with Orpheus and became a solver for POG. However, one day, Jin received a vision of the future, showing the world being destroyed by Pythagoras. Jin quit POG while Baron stayed to become a Giver, working together to find a way to prevent Pythagoras from achieving the God Scrolls. Two years prior to the story, Jin left to fight against Pythagoras in the Puzzle of God, though the results are unknown. As Kaito and the other files discover a hidden file on the POG network reading 'Pythagoras is dead', Rook appears before them, revealing he has been the one in control of the POG since Pythagoras' death half a year ago. As Rook reveals himself to be an Orpheus contractor, Kaito's vision shows that the one supposedly responsible for destroying the world is himself.
23	"The Choice Remaining" Transliteration: "Nokosareta Sentakushi" (Japanese: 残された選択肢)	March 11, 2012 (2012-03-11)[4]
After Kaito's encounter with Rook, he goes to see Ana, whose drawings and paintings resemble his visions, explaining that the future is yet to be determined. The next day, Gammon challenges Kaito to a final puzzle in which they must climb up a series of platforms to win while avoiding being crushed by their opponent. As Kaito becomes conflicted on how to solve the puzzle without putting Gammon at risk, his Orpheus bangle breaks, retaining his brain power but remembering his ideals, allowing him to win the puzzle without killing Gammon. As Rook becomes shocked by the results, Kaito's vision changes accordingly.
24	"Eternal Existence" Transliteration: "Eien no Sonzai" (Japanese: 永遠の存在)	March 18, 2012 (2012-03-18)[4]
As the POG breaks apart following Rook's outburst, Kaito is contacted by Rook, who asks to spend some time with him in a surprisingly friendly manner. After a seemingly normal day of hanging out together, Rook challenges Kaito to a fight to the death so that he can unlock the God Scrolls he has in his possession. As Kaito agrees to go with him to the island of Kaika in the hopes he can save him as well, Baron and Gammon retrieve Jin while Bishop asks the help of Nonoha, Cubic and Souji to try and stop them.
25	"Let's Start the Puzzle Time!" Transliteration: "Pazuru Taimu no Hajimari da!" (Japanese: パズルタイムの始まりだ！)	April 1, 2012 (2012-04-01)
Rook presents a solar system based puzzle where, if Kaito reaches the Sun, Rook would fall to his death, with Rook simplifying the puzzle to make it easy for Kaito to solve. Kaito, looking for a way to solve the puzzle while saving Rook, realizes he can get help from his friends. Realizing that the puzzle is based on the wooden puzzle Rook made him ages ago, Kaito manages to save Rook by stopping the Sun from crumbling while the others use a bomb to steer Kaito and Rook to safety. As Rook realizes he wants to make more puzzles for fun, his Orpheus bangle disappears, and he decides to go on a journey to find himself and reform the POG.

Season 2

No. Overall	No. In season	Title	Original air date
26	1	"Orpheus Order" Transliteration: "Orupeusu Ōdā" (Japanese: オルペウス・オーダー)	April 8, 2012 (2012-04-08)
While solving another Fool's Puzzle, Kaito spots a curious person watching him. The next day, Kaito discovers a Fool's Puzzle inside Root Academy that wasn't arranged by the POG. Finding a strange mirror based "Judgment Puzzle", Kaito meets the person, who challenges him to escape the puzzle or else be killed. Meanwhile, student vice president Tamaki Chieno, who has a crush on Souji, is approached by another strange man. As the curious person hints that he knows more about Kaito than he lets on, Kaito manages to solve the puzzle by accelerating his brain in the same way as the bangle despite not having one, just in time to escape as the puzzle self destructs. Afterwards, the man introduces himself to be Freecell, a member of the Orpheus Order who possesses an Orpheus bangle and states that Kaito will be betrayed one after another by his comrades, before Tamaki appears to challenge him to a puzzle battle.
27	2	"Darkness of the Heart" Transliteration: "Kokoro no Yami" (Japanese: 心の闇)	April 15, 2012 (2012-04-15)
Tamaki, who was given a strange earring by one of the Orpheus Order's members, Pinochle, challenges Kaito to a Judgment Puzzle in which he must navigate an ever-changing maze inside the Root Academy Tower. Nonoha deduces that Tamaki's change in personality is the result of her earring, which possesses the same properties as the Orpheus bangle. Tamaki uses the power of the earring to increase her brainpower, but Kaito manages to successfully solve the puzzle. As Kaito reaches Tamaki, her earring breaks, returning her to her senses. Kaito begins questioning the Orpheus Order on their motives and before they escape, Freecell states that it might take a lot more for Kaito to "remember".
28	3	"Perorin-Pororin's Trap" Transliteration: "Perorin Pororin no Wana" (Japanese: ぺろりんぽろりんのワナ)	April 22, 2012 (2012-04-22)
While at the arcade, clumsy Puzzle Club member Airi Mizutani is approached by a member of the Orpheus Order, Mizerka, who gives her an Orpheus Ring. After putting it on, Airi suddenly becomes more intelligent and less clumsy. She then lures Nonoha into a trap in order to challenge Kaito to a puzzle where he must solve a crane puzzle in a limited number of moves in order to save Nonoha. What proves difficult is Airi's stubbornness, as she constantly resets the puzzle every time Kaito comes close to winning. Just then, Airi enters an Orpheus state and brings up a seemingly impossible puzzle before losing consciousness. However, Kaito manages to solve the puzzle, only to discover Nonoha wasn't in any danger at all, while the Orpheus Ring breaks and Airi returns to her normal self as Mizerka records the data from the puzzle match.
29	4	"Night of the Knights" Transliteration: "Kishitachi no Yoru" (Japanese: 騎士たちの夜)	April 29, 2012 (2012-04-29)
During the night, the members of the Orpheus Order meetup to receive a message from their leader, Klondike. Meanwhile, as Cubic deduces the recent Orpheus Rings are modernized replicas of the ancient artifacts, Gammon discovers spots Miharu with an Orpheus Ring and confiscates it from her, along with a note directing Kaito and co. to a stadium. There, they find the Orpheus Order, who reveal they are experimenting by using the replicas to collect data for building an authentic ring so they can distribute it across the globe to awaken humanity's true potential. The Order's secretary, Whist, then pits Kaito, Gammon, Cubic and Ana in a puzzle match against the Order's Pinochle, Mizerka, Doubt and Melancholy, revealed to all possess authentic Orpheus Bangles, with the losing team becoming electrocuted. In a puzzle to gain the most colored squares, Kaito manages to set things up for Gammon to bring things to a tie so no one gets electrocuted. As the Orpheus Order leaves, they again make reference to some part of Kaito's past which still eludes him.
30	5	"Wandering Galileo" Transliteration: "Mayoeru Garireo" (Japanese: 迷えるガリレオ)	May 6, 2012 (2012-05-06)
Gammon's frustration concerning the Orpheus Order's attempt to target Miharu leads to a slump in the puzzles he makes under his pen name, Setsu Chidou. When he returns home that night, he finds Doubt waiting for him, offering him the chance to join the Orpheus Order. The next day, Gammon asks the POG for assistance and meets up with Elena, who becomes concerned about Gammon's desire to ditch puzzles in favor of revenge. The next day, without warning, Kaito challenges Gammon to solve the puzzles he made, based on the ones Gammon made the first time they met. As he solves them, Gammon's resolve returns and remembers his love for puzzles. Afterwards, Gammon sends a letter to Doubt rejecting his offer before vowing to make better puzzles than before, while Freecell prepares to make a move on Root Academy.
31	6	"Battle is the Puzzle's Melody" Transliteration: "Kettō wa Pazuru no Shirabe" (Japanese: 役闘はパズルの調べ)	May 13, 2012 (2012-05-13)
The Orpheus Order show up at Root Academy, revealing themselves to be students of old school, Crossfield Academy, and challenge Kaito and the others to a duel in which, if they win, Kaito and co. will have to aid them in their plans. They are brought to their hidden base at the Prouder Horse mall where they must participate in a team sliding puzzle. Cubic loses the first round against Melancholy who hints at a personal vendetta against Kaito, albeit he has no memory of it. Cubic manages to gather some data to send to Souji. As Kaito prepares for the next round, Freecell shows off a pendant that Kaito supposedly made a promise on.
32	7	"Promise" Transliteration: "Yakusoku" (Japanese: 約束)	May 20, 2012 (2012-05-20)
Kaito begins his match against Pinochle, who is able to predict Kaito's moves after having studied his data, though Kaito manages to turn that aspect against him, by predicting what Pinchole expects of him. As Kaito gains the upper hand, Pinochle begins revealing things about his past at Crossfield Academy, reminding him of a promise he made with Freecell to solve a puzzle, that he broke while searching for Rook that day, which supposedly led to the death of Freecell's mother. Kaito then remembers Freecell, the weight of the information wavers his determination and ends up losing the match. Afterwards, Freecell, becomes angered that Pinochle made Kaito forcibly remember him.
33	8	"Have Some Howawan" Transliteration: "Howawan wo Agetai" (Japanese: ほわわんをあげたい)	May 27, 2012 (2012-05-27)
As Kaito has some alone time following his match, where he recalls more about his past, Ana talks with Nonoha about his sister, Eve, who helped cheer him up when he was down. As the game resumes, with another loss resulting in a team loss, Ana faces off against Mizerka. As Mizerka becomes annoyed by how much of a free spirit Ana is, Nonoha shows Kaito a chalk drawing Ana drew, based on a painting Eve did for him. Firm in his belief in Kaito, Ana manages to win his round. Afterwards, Kaito gives his thanks to Ana, who suggests he try and do the same thing for Freecell.
34	9	"The Truth of Smiles" Transliteration: "Egao no Shinjitsu" (Japanese: 笑顔の真実)	June 3, 2012 (2012-06-03)
As Freecell refuses to tell Kaito the truth about what happened to his mother, Gammon gets Whist to combine the remaining two matches into a tag-team duel with Kaito and Gammon against Freecell and Doubt. As Kaito continues to struggle throughout the game, Freecell continues to torment him. Just then, Cubic receives the date he had Souji analyse, revealing that Freecell and the others had been consumed by the Orpheus rings, which are controlling their emotions just like Rook was. As Nonoha reminds him of his promise to solve all puzzles, Kaito regains his senses and works with Gammon to win the game.
35	10	"Puzzle Time Won't Start!" Transliteration: "Pazaru Taimu ga Hajimarinai!" (Japanese: パズルタイムが始まりない!)	June 10, 2012 (2012-06-10)
Following the battle against Orpheus Order, Elena transfers into Root Academy and takes the Phi Brain kids and their friends on a vacation on her private island, where puzzling is forbidden. However, Kaito and the others have trouble relaxing due to the lack of puzzles. They soon get excited when they find a clue to what is supposedly a puzzle and go into a cave to search for it, not willing to listen to Elena's explanation. In the end, it is revealed to be the set of a monster movie the POG made which almost made them bankrupt and was kept a secret. Realising there's no stopping them, Elena turns the vacation into a Puzzle Camp, much to the annoyance of Nonoha.
36	11	"Nonoha Wants to Solve Puzzles Too!" Transliteration: "Nonoha Datte Tokitai!" (Japanese: ノノハだって解きたい!)	June 17, 2012 (2012-06-17)
With the vacation now fully puzzle focused, Nonoha feels like she has nothing to do. Wanting to spend more time with everyone, Nonoha decides to join in Elena's intense puzzle training. Although she sucks at the physical puzzle, she shows talent in solving digital versions of the Kenja Puzzles they faced before thanks to her photographic memory. After feeling a bit more left out, Nonoha becomes determined to solve a puzzle she received from Kaito when she was little before the camp ends. As she focuses on the puzzle, the others seem to get a little less enthusiastic. On the last day of the camp, Airi and Miharu come to Nonoha for help with preparing breakfast. Afterwards, Nonoha realises she still has a place to belong to even without puzzles.
37	12	"The Lure of Minotaur" Transliteration: "Minotaurosu no Yūwaku" (Japanese: ミノタウロスの誘惑)	June 24, 2012 (2012-06-24)
As Rook and Bishop investigate the Orpheus Order elsewhere, Souji expresses his desire to quit both the student council and the puzzle club. Meanwhile, Souji is contacted by Minotaur, who is revealed to be working for the Orpheus Order and tries to tempt him with a replica ring, though he still refuses. The next day, Naoki Takeda decides to run for student council president, prompting Tamaki to run against him. Later that day, Souji receives an invitation from Minotaur to come to the place where Kaito found the Orpheus Bangle, challenging him to a Fool's Puzzle which would destroy the academy should be lose, presenting him with a replica ring so he can solve it. As Souji ponders his decision, it is revealed that he was in fact the Minotaur who challenged Kaito in the past since Kaito's bangle rejected him prior to choosing Kaito. As the others get word of this, Cubic reveals what Souji told him about willingly becoming a host for the replica ring. As they arrive on the scene, they find that Souji had solved the puzzle using the replica ring and challenges Kaito.
38	13	"The Forbidden Fruit" Transliteration: "Kindan no Kajitsu" (Japanese: 禁断の果実)	July 1, 2012 (2012-07-01)
Souji sets up a sliding puzzle for Kaito, also threatening to blow up the academy should he fail. As Cubic, defiant that Souji hasn't changed, goes to search for said bomb to prove his theory, Nonoha and Ana end up helping Tamaki with her paperwork in order to get her to evacuate. As the game progresses, Souji soon feels the advantage of the replica ring and starts to enjoy it. However, Kaito soon expresses his joy at such a fun puzzle and turns it around for the win, which leads to the replica ring being destroyed. Afterwards, Souji explains what he had learnt from wearing the ring, deducing the rings will destroy themselves if their user feels they have lost. The next day, Tamaki is voted student council president whilst Souji goes on a journey, leaving Kaito with another truth he discovered about the rings; their desire to join with him and become true Orpheus Bangles.
39	14	"The Demon Returns" Transliteration: "Kaittekita Akuma" (Japanese: 帰ってきた悪魔)	July 8, 2012 (2012-07-08)
Elena is told off by Tamaki after makes various 'improvements' to the school without permission. Meanwhile, former POG member Herbert Muller appears before the Orpheus Order, beating Doubt in a puzzle and revealing he has a genuine Orpheus Bangle. As Whist decides to tell Freecell the intentions of their leader, Klondike, Herbert kidnaps Elena to lure Kaito and Nonoha to a film studio, where they must both battle against two Orpheus Order members, Wu and Noh, in order to rescue Elena. As Nonoha struggles to keep up, Rook shows up to take her place, along with Bishop who rescues Elena, allowing Kaito and Rook to beat the puzzle.
40	15	"Atonement" Transliteration: "Tsugunai" (Japanese: つぐない)	July 15, 2012 (2012-07-15)
As Melancholy takes interest in a girl named Lotte and her intelligent dog named Rummy, Rook shows Kaito and the gang a newer Replica Ring model recovered from a manufacturing plant for Cubic to analyze. Melancholy equips Lotte and Rummy with Replica Rings and uses them to confront Rook in a puzzle, in which they must navigate a fog filled maze over a deadly drop, with the loser falling to his death. As Rook manages to learn the trick to solving the maze, Rummy struggles under the command of Lotte, whose personality is manipulated by the Replica Ring. As Rummy stops, Rook reminds Lotte that it's not the mazes Rummy liked, but her. As Herbert decides to set the maze to automatically collapse, Rook manages to reach the center in time to save both Lotte and Rummy. The next day, Rook returns to the POG to help stop the Orpheus Order from claiming more victims.
41	16	"Piece of Malice" Transliteration: "Nikishimi no Pīsu" (Japanese: 憎しみの欠片)	July 22, 2012 (2012-07-22)
Ana is visited by his older sister, Eve, who is soon revealed to possess an Orpheus Bracelet, showing a drastic change from the kind-hearted personality that Ana admired and blaming him for having to give up her dream as a painter. Working with Mizerka, she challenges to Kaito to game where, should he lose, Mizerka would break Ana's arm and end his dream as a painter. Kaito is tasked with completing a large picture puzzle in fifteen minutes. As Eve laments how she suffered due to Ana overtaking her in artistic talent, Kaito manages to complete the puzzle, revealing a painting of suffering that Eve drew. After Kaito explains how neither the puzzle or the painting represents the true Eve, Mizerka attempts to attack Ana but Eve stops her and her bracelet, which turns out to be a Replica Ring, breaks. As Mizerka contemplates how Eve was used an experiment, Eve goes under the protection of the POG, although Ana feels she is lying when she says she'll take up painting again.
42	17	"Pinochle's Resolve" Transliteration: "Pinokuru no Kakugo" (Japanese: ピノクルの思結)	July 29, 2012 (2012-07-29)
Pinochle challenges Kaito to a puzzle, saying he will tell him everything about what happened between him and Freecell should he win. However, the loser will fall into a furnace. As Pinochle tells of how Kaito was supposedly a liar, Kaito simply states he wants to know the truth so he can properly apologise for what he may have done and soon makes a comeback. As they reach the top, Kaito refuses to finish Pinochle off, as hurting someone for the sake of a friend is not something that friend would appreciate. As Whist sabotages the puzzle to try to make Pinochle fall, Kaito manages to use his smarts to rescue him. As Pinochle realises what he wants is to become true friends with Freecell, his Orpheus Ring breaks, revealed to be another Replica Ring. As Freecell and Whist tell the others that Pinochle died, Pinochle reveals that he spread bad rumors so that Freecell wouldn't become friends with Kaito and abanadon him, with Cubic deducing that the Ring caused him to believe in his own memory that Kaito did it. As Pinochle mentions he doesn't know the connection between Kaito's promise and the death of Freecell's mother, Kaito decides to become friends with him.
43	18	"About This Man, Herbert" Transliteration: "Sono Otoko, Heruberuto Nitsuki" (Japanese: その男, ヘルベルトにつき)	August 5, 2012 (2012-08-05)
After finding out the location of Orpheus Order's hideout from Pinochle, Kaito and the gang head there, where they are confronted by Herbert, who is wearing two rings. He challenges Kaito to puzzle in which he must use a boat to ferry everyone across to the other side whilst taking into consideration roles they have been given, with Kaito requesting to meet with Freecell should he win. Things get a little complicated when two necessary keys are thrown into the mix. Despite some last minute interference by Herbert, Kaito manages to solve the puzzle. As Kaito commends Herbert on his puzzle, he becomes possessed by the rings and activates a bomb against his will, causing the puzzle room to collapse with Kaito and Herbert inside it.
44	19	"Awakening" Transliteration: "Kakusei" (Japanese: 覚醒)	August 12, 2012 (2012-08-12)
As Cubic works to help Gammon and Ana, Nonoha goes in search of Kaito and comes across Freecell. After some reluctance, Nonoha accepts Freecell's help in solving the puzzle blocking their way to where Kaito is, being given a memento from his mother as payment. As Freecell tells Nonoha about how he feels Kaito's broken promise is related to his mother's death, his Orpheus Bangle glows a mysterious color and his memory is rewritten, leading him to now believe his mother's death wasn't Kaito's fault, but his own. As the cave soon begins to collapse, Freecell uses the power of his bangle to solve the puzzle. After managing to find Kaito and Herbert and getting them to safety, Freecell reveals the Replica Ring he had been wearing had evolved into a true Orpheus Bangle, challenging Kaito to a game when he is ready.
45	20	"Return of the Fool's Puzzle" Transliteration: "Gusha no Pazuru Futatabi" (Japanese: 愚者のパズル再び)	August 19, 2012 (2012-08-19)
As the gang try to figure out more behind Klondike and the Replica Rings, Cubic reveals to Gammon that Kaito's brain patterns are still accelerating even without the Orpheus Bangle. Meanwhile Kaito, who had a vision involving Freecell and Nonoha, is approached by Whist, who reveals all the rings the Orpheus Order wears are replicas, but Freecell had managed to use it to awaken as a Phi Brain child. Realising he needs to become stronger, Kaito asks Rook to take him to a Fool's Puzzle. Kaito is soon brought to a maze where he must carefully avoid statues which trigger trapdoors. Managing to reach the end of the puzzle safely, Kaito discovers that Freecell had managed to solve it first. As Rook decides to help Kaito train against harder puzzles, Freecell meets up with Whist, revealing what he now knows thanks to the Ring.
46	21	"The Sad Clown" Transliteration: "Kanashiki Dōkeshi" (Japanese: 悲しき道化師)	August 26, 2012 (2012-08-26)
Mizerka and Doubt are sent a password to access their confidential files, where they learn the truth about their rings. As Mizerka learns Melancholy had been playing along with her the entire time, she and Doubt get their rings upgraded by Doubt and go to challenge Kaito and Ana to a final puzzle. Baron agrees to the challenge and has Gammon construct a collapsing construction beam puzzle to battle on. As the puzzle goes on, everyone takes after Ana's example and enjoy the puzzle. As Kaito gets into a winning position, Mizerka expresses her desire to live, and both her and Doubt's rings break, although they are both rescued. Afterwards, Pinocle reveals he was the one who sent Mizerka the password so they could be saved. Meanwhile, Freecell meets up with Orpheus Order's leader, Klondike.
47	22	"Lord of the Board" Transliteration: "Banjō no Shihaisha" (Japanese: 盤上の支配者)	September 2, 2012 (2012-09-02)
Melancholy and Whist appear at the POG headquarters to deliver a message from Klondike challenging Kaito to a puzzle, revealing he has Freecell in his possession. As Kaito and Klondike prepare themselves for the puzzle, in which they must design a maze for their opponent and be the first to solve their opponent's maze, Klondike reveals all of his experiments were to create a Final Ring for himself. As Kaito struggles against Klondike's maze, Melancholy reveals her ring is a genuine Orpheus Bangle. As Kaito figures out the nature of Klondike's maze, Klondike activates the field on which they are playing, which turns out to be a device used to amplify and transmit Kaito's brainwaves to the Final Ring, activating and completing it.
48	23	"God's Miscalculation" Transliteration: "Kami no Gossan" (Japanese: 神の誤算)	September 9, 2012 (2012-09-09)
Souji returns having been to Crossfield Academy where he retrieved a diary from someone who used to be in the Orpheus Order. It details how the Orpheus Order was changed when Klondike decided to have the Orpheus Ring examined in order to make replicas. The first prototype ring was worn by the diary's owner, a woman named Solitaire, who is revealed to be Freecell's mother. Believing the rings to be dangerous, Solitaire fled the Orpheus Order with Freecell, chronicling the effects the ring had on her in her diary, which she was unable to give to Freecell before she died. As Kaito becomes determined to rescue Freecell from his fate, the POG and ex-Orpheus Order members instigate a plan to stop Klondike and destroy the Final Ring. Hacking the elevators, the POG manage to bring Klondike, Whist and Melancholy to a dead end, where they are confronted by Doubt and Pinochle. However, Klondike manages to foresee this and escape to the roof where Freecell awaits, demonstrating a power that frightens Melancholy to the point of her Orpheus Ring breaking. After Freecell manages to overwhelm Klondike somehow, he steals his Final Ring and heads off on a helicopter, leaving a message to Kaito to meet him at the location of God's Puzzle.
49	24	"Closed Off World" Transliteration: "Tojita Sekai" (Japanese: 閉じた世界)	September 16, 2012 (2012-09-16)
As Freecell becomes curious as to why Nonoha is present in a vision of him facing off against Kaito, Kaito and the others ponder why Freecell needed Klondike's Final Ring. The next day, Whist abducts Nonoha, taking her to Freecell's location in the Himalayas. As Kaito and the others head to their location, Freecell explains how the memento he received from Solitaire was a puzzle he wanted to solve with Kaito. Nonoha then proceeds to tell him the truth about what happened to Solitaire. She also manages to replicate a puzzle Solitaire made containing a secret answer showing Solitaire's earnest feelings for Freecell, who then starts envisioning Nonoha as his own mother. Meanwhile, Kaito and the others are greeted by Whist, who wants to create a successor that can surpass God. As Freecell appears to start the puzzle, he forces the Final Ring onto Kaito to try to make him a Phi Brain child, but Kaito manages to break it with his will. Freecell soon proceeds to take Kaito to the location of the Puzzle of God he has made.
50	25	"Unleash the Infinite Puzzle!" Transliteration: "Mugen no Pazuru wo Tokiharate" (Japanese: 無限のパズルを解き放て！)	September 23, 2012 (2012-09-23)
Kaito and Freecell begin the Puzzle of God suspended above the Himalayan mountains in which Kaito must use clues to chase down Freecell in a game of blind tag. As they constantly try to outwit each other, their brain levels increase and they soon become influenced by the Orpheus power and start running in circles without end. Their thoughts enter a closed world where Freecell doesn't want the puzzle to end. As they both start to reach their limits, Nonoha calls out to Kaito and snaps him out of it, allowing him to end the eternal loop and solve the puzzle. Despite the puzzle being solved, Freecell remains soulless as his ring is still active. Remembering Freecell's original promise with him, Nonoha gets Kaito to help Freecell finally solve his mother's pendant, allowing him to break free of the ring and return to normal. As Freecell and the others return to Crossfield Academy, Kaito and the gang resume their duty of releasing the Fool's Puzzles.

Season 3

No. Overall	No. In season	Title	Original air date
51	1	"Raetsel..." Transliteration: "Reitseru..." (Japanese: レイツェル…)	October 6, 2013 (2013-10-06)
Whilst exploring a Sage's Puzzle in England with Jin in the hopes of recovering his memory, Kaito stumbles upon an unsolved puzzle, having assumed Jin had already solved all of them. Solving the puzzle with ease, Kaito discovers a brooch with a cat engraved on it, which Jin takes an interest in. Later, they, along with Nonoha and Rook, go to the Fool's Puzzle where Kaito and Rook previously faced off against each other, where they encounter a strange girl named Raetsel, who takes the brooch and runs off with Jin inside the puzzle, activating its traps. Back in Japan, a man named Johan Sigmund Enigma appears before the other Phi Brain children, attaching an explosive puzzle on Cubik's back, stating his intent to annihilate all puzzlers, claiming it to be Jin's desire. After the bomb is disarmed, Enigma leaves whilst his accomplice, Whodunit, challenges the others to a puzzle. Meanwhile, Kaito's group arrive at a room with many doors, with Raetsel tasking them with finding the correct door before the ceiling collapses, claiming that Jin hated puzzles.
52	2	"You Know Nothing" Transliteration: "Kimi wa Nani mo Shiranai" (Japanese: 君は何も知らない)	October 13, 2013 (2013-10-13)
Thanks to Kaito's deductions and Nonoha's memory, their group manages to find the correct exit and escape. Afterwards, Raetsel takes everyone to her personal boat, where she shows them a feed of Gammon's group as they face Whodunit's puzzle, where they must arrange cubes successfully or else be electrocuted. Working together, they deduce the colors of the cube are a clue to numbers in a magic square puzzle, managing to solve it with a second to spare. Although Raetsel leaves Jin with Kaito and the others, they are left uncertain by how the Master Brains, who target puzzlers for bounty rewards, claim to be contracted by Jin.
53	3	"Even So, I'll Believe" Transliteration: "Soredemo Ore wa Shinjiru" (Japanese: それでも俺は信じる)	October 20, 2013 (2013-10-20)
As Raetsel transfers into Root Academy, Gammon spots Jin behaving rather oddly, uncertain whether or not to believe either Kaito or Ratesel. Later, a Master Brain posing as Jin appears before Kaito, challenging him to a Fool's Puzzle in which he much navigate a sliding puzzle maze within a time limit or else fall to his death. As Kaito comes close to solving it, the fake Jin blows out one of the rooms, preventing him from reaching the exit, as well as tilting the maze. However, Kaito manages to take advantage of risky nature and reach the maze's goal in time.
54	4	"Eating Delicious Things is an Alternate Method for Solving Puzzles" Transliteration: "Oishī mono o Tabereba Daitai no Koto wa Kaiketsu Suru" (Japanese: おいしいものを食べればだいたいのことは解決する)	October 27, 2013 (2013-10-27)
Whilst Kaito is having a picnic with Jin and Nonoha, Raetsel appears before Kaito, stating that the Fool's Puzzles made Jin suffer, clashing with Kaito's own memories of him. However, Nonoha helps them realise there are some memories of Jin that they both share. Meanwhile, a Master Brain named Dr. Theorem appears before Cubik, who decides to face him in a puzzle to prevent him from reaching Kaito. Cubik is tasked with finding 'the most beautiful number' within 15 minutes before he is engulfed in flames. After Kaito learns of Cubik's predicament, he rushes to his aid and helps him find the solution; the golden ratio. After the battle, however, Jin starts experiencing pains in his head.
55	5	"I Just Get That Feeling" Transliteration: "Sonna Ki ga suru" (Japanese: そんな気がする)	November 3, 2013 (2013-11-03)
Rook calls Kaito and Raetsel together, telling them about a time he had a talk with Jin, who told him a cryptic message about puzzles being both 'chains' and 'mirrors', which he had also told Raetsel. He goes on to explain his research on Jin's year spent with Raetsel, showing that even though he fought against Fool's Puzzles, he also taught others the fun of puzzles. Wanting to prove her own case, Raetsel takes Kaito and Rook to a Fool's Puzzle that Jin wasn't able to solve, consisting of various elevators above a bottomless pit. Seeking an answer to Jin's riddle, Rook takes on the puzzle, in which he must navigate the elevators based on their assigned numbers or else be crushed. With encouragement from Kaito to listen to puzzle's voice, Rook manages to reach the goal. Rook states he was able to solve the puzzle thanks to a clue allegedly left behind by Jin, who apparently lied to Raetsel about not completing it to keep her safe. Rook then states his answer to Jin's riddles, that puzzles are both chains that link people together and mirrors that reflect the solver's emotions.
56	6	"Rae-Rae is a Cat-Friend" Transliteration: "Rei-Rei wa Nekotomo" (Japanese: レイレイはネコ友)	November 10, 2013 (2013-11-10)
Elena, who had just come back from abroad, becomes curious about Raetsel and decides to hold a welcoming party for her to find out more about her. This attracts the interest of Ana, Airi and Tamaki, who all invite Elena to hang out with them, hitting the shops before going to a pool. Meanwhile, Gammon, who becomes irritated that his bounty is lower than the others, is called out by a Master Brain named Colonel Demolitionman, who traps Elena's group, along with Kaito and the others, inside the pool building. This puts pressure on Gammon, who has to solve a set of puzzles from inside a tank before it smashes into the building with everyone inside it. Despite facing up against great odds, Gammon's determination to not lose lets him solve the puzzle and stop the tank in time. Afterwards, Raetsel confronts Enigma, who put her at risk as a reminder of her mission. As Raetsel chooses to break her new ties of friendship and go back to her old self, Melancholy is seen with Raetsel's group.
57	7	"Would You Like Some Flowers Too?" Transliteration: "Anata mo Ohana Ikaga?" (Japanese: あなたもお花いかが?)	November 17, 2013 (2013-11-17)
Rook informs Kaito that Jin had previously made some Fool's Puzzles, which he himself destroyed as a means to improve his Giver skills, theorising that he may have been under influence from the Orpheus Bracelet. Kaito, refusing to acknowledge this, shows Jin a warm puzzle he once showed him during his childhood. Meanwhile, Freecell falls into a trap laid out by Melancholy, who has joined the Master Brains in order to get revenge on him, trapping him in an underground maze. Learning of Freecell's predicament from Pinochle, Kaito, Nonoha, and Gammon fly to England to search for him, finding him at an old train yard, where Melancholy challenges Kaito, Gammon and Freecell to a Fool's Puzzle, in which they must connect with their partners whilst sacrificing the other players. Contrary to her expectations, however, Melancholy is chosen as the fourth player in the game by Enigma, who had caught onto her intention to try and save the others and also claims it to be a puzzle built by Jin. As Gammon notices a message laid out by Kaito, both Freecell and Melancholy struggle with theirs.
58	8	"Goodbye Forever" Transliteration: "Eien ni Sayōnara" (Japanese: 永遠にさようなら)	November 24, 2013 (2013-11-24)
Freecell and Melancholy soon come to understand Kaito's message, allowing the four of them to reach a solution that allows everyone to escape alive. Afterwards, Melancholy invites everyone to her mansion for dinner, where she lives alone with her maid and butler. Later that night, Kaito and the others come across a room filled with puzzles Melancholy made for her Master Brain training, which helps Freecell rekindles his love of puzzles. Still holding onto her hatred, Melancholy burns all of her puzzles. The next day, however, the others come across her feeling remorse, realizing she made puzzles because she was lonely, and ask to become her friends, to which she stubbornly declines. Not wanting to give up, Freecell asks Kaito to design a crossword puzzle for her to solve after they leave, saying they will meet again. Meanwhile, Raetsel suspects something is up with Enigma.
59	9	"Let's Go, To That Place" Transliteration: "Ikimashou, Ano Basho e" (Japanese: 行きましょう, あの場所へ)	December 1, 2013 (2013-12-01)
Baron, Souji, Rook, Bishop, Raetsel, and Jin are all called up to meet up with Enigma to discuss Jin. Enigma talks about how Jin first met Raetsel, noticing her skills in crafting puzzles, and took her on his journey to protect her from organizations like the POG. When Raetsel discovered Jin was going up against Fools' Puzzles, she believed he was suffering alone and resolved to help him. Eventually Jin left Raetsel to go up against Count Pythagaras, where he lost his memories. Enigma claims that Jin told him to assemble Master Brains and annihilate all puzzlers should something happen to him, though Souji remains suspicious about whether Enigma has his own agenda against puzzles. Meanwhile, Raetsel states Jin told her she could abandon puzzles should she choose, which Jin does recall saying. Afterwards, Rook and Souji believe there may be clues in God's Puzzle and God's Scripture on how to restore Jin's memories. Meanwhile, Baron questions Jin on what he told Raetsel, since it contradicted what he once said to Kaito, which Jin suspects may pertain to something Kaito has that Raetsel doesn't. Raetsel, who had overheard them, remains in denial and takes Jin for herself, challenging Kaito to try to find them.
60	10	"What Is Your Real Dream?" Transliteration: "Hontō no Yume wa Nanda?" (Japanese: 本当の夢は何だ?)	December 8, 2013 (2013-12-08)
Following a hint Raetsel left them, Kaito, Nonoha and Gammon travel to Texas, where they meet a girl named Nono and her brother, Joe, who is a skilled basketball player. Nono explains that Joe was scouted for a pro team, but when their parents died, he quit basketball to take over his father's job, which is revealed to be as a Master Brain. Joe challenges Gammon to a Fool's Puzzle, in which they must race against each other through a maze left behind by his father, using bikes that have had their brakes cut. Despite being cut off from the latter half of the maze, Gammon manages to use the maze's walls to get ahead of Joe and win the race. Afterwards, Gammon reminds Joe to follow his true dream and take up basketball again, whilst Kaito finds a clue in the maze's center directing them to their next location.
61	11	"I Just Remembered Someone" Transliteration: "Ima, Dareka o Omotteta" (Japanese: 今, 誰かを思ってた)	December 15, 2013 (2013-12-15)
With Kaito's group stuck between flights, Cubic and Ana go ahead of them to Rio de Janeiro, where they meet a woman named Regina Maria Vasco. Taking them to a hidden cave under the pretense of helping them find Raetsel, Regina reveals herself to be a Master Brain and traps Cubic and Ana in a Fools' Puzzle, in which they must travel via canoe across several containers whilst making sure they end up with equal volumes. Cubic makes some progress with his calculations thanks to Ana, but Regina keeps interfering with their progress. Luckily, Cubic's robot, Iwashimizu, arrives and uses a stalactite to bring the water up to the right level, solving the puzzle and earning their next clue. As Kaito's group finally arrive only for the puzzle to be already solved, Herbert is seen talking to Enigma.
62	12	"You Really Thought So?" Transliteration: "Nado to Iu to Omottaka?" (Japanese: などと言うと思ったか？)	December 22, 2013 (2013-12-22)
After discovering some puzzles in South America, along with a ring left behind by Raetsel, Kaito's group soon come up against Herbert, who has equipped himself with four replica rings. He challenges the group to use their own weight to determine a balancing puzzle. After some initial confusion, Kaito manages to figure out the puzzle's hidden gimmick and solve it. As Kaito urges Herbert to throw away the rings, Herbert finds himself at odds with his own conscience, eventually finding the power within himself to break free of the rings. After Herbert inadvertently sets his own trap on himself, the group head towards the Andes.
63	13	"She's Too Shallow" Transliteration: "Koitsu wa Soko ga Asa Sugiru" (Japanese: こいつは底が浅すぎる)	December 29, 2013 (2013-12-29)
Feeling that she somehow needs to prove herself to Jin, Raetsel decides to confront Kaito herself, challenging them to find Jin inside a Mayan pyramid. Meanwhile, Rook and FreeCell arrive at an Egyptian pyramid where the Pythagoras Scriptures are believed to be hidden. As Kaito travels through Raetsel's puzzle, he feels that it is shallow and half-hearted. Upon reaching the maze's center, Raetsel questions if Kaito will be able to accept whatever truth lies before him, Kaito echoes what Jin taught him about not running away from the truth. However, the Jin at the center of the maze turns out to be the impostor Jin from before, with Raetsel trapping Kaito and the others inside the maze, holding them as the prize for Rook and FreeCell's puzzle.
64	14	"If It Were the Us From Then" Transliteration: "Ano Koro no Boku-tachi nara" (Japanese: あのころの僕たちなら)	January 5, 2014 (2014-01-05)
Rook and FreeCell is tasked with helping each other get through the pyramid's maze using hieroglyphic gateways within ten minutes before they are locked inside forever. Whilst they quickly figure out the relationships of which gates open up with other, they soon find themselves at a dead end. Freecell suggests that they stop thinking like Solvers and instead think like Givers, deducing what methods Raetsel would use to keep them trapped inside, discovering the puzzle's weakness and arriving at the center of the maze in time. As Enigma sets the two pyramids to self-destruct, Rook and Kaito discover switches in both pyramids which reveal the Pythagoras Scriptures, before they escape safely. Meanwhile, Enigma forces Raetsel and Jin to flee from their hideout, hoping to push her into a corner.
65	15	"I Want to Build a World Where No One is Hungry" Transliteration: "Onaka Ippai no Sekai o Tsukuritai no" (Japanese: おなかいっぱいの世界をつくりたいの)	January 12, 2014 (2014-01-12)
Baron calls Kaito and the others to the grave of a woman named Lovushka, who was a solver at POG when Baron and Jin joined. Jin and Lovushka were initially close rivals, but soon Jin drifted apart from her, particularly after gaining an Orpheus Bracelet. After Jin disappeared due to the bracelet's influence, Lovushka started challenging Fools' Puzzles, one of which ended up taking her life. It is then revealed that Lovushka's fiancée, who was thought to have died, was none other than Enigma, aka Zagadka, who appears at that moment. Enigma reveals everything about Jin hating puzzles was a lie he orchestrated himself to avenge Lovushka, stating how her dream to restore her homeland was twisted by Pythagoras. It is soon made clear that Lovushka's death was the result of Enigma pushing her to fulfil her dream whilst keeping quiet about her homeland returning to wealth, whilst he himself decided puzzles were to blame. He then leaves, saying Raetsel will be waiting for Kaito in Hell's Valley for a final puzzle battle.
66	16	"The Journey is Over" Transliteration: "Tabi ga Owari" (Japanese: 旅 が 終わり)	January 19, 2014 (2014-01-19)
Kaito and the others arrive at Raetsel and Jin's location, where Kaito and Nonoha decide to speak with Raetsel privately, telling her what they learned from Enigma. Raetsel states she had apparently figured everything out herself, telling Kaito that Jin's memories will return if they face off against each other by a 'Killing Colloseum' puzzle that he and Raetsel made together. The puzzle soon begins, in which they must try and reach an exit before their opponent whilst avoiding deadly boulders. Although Kaito tries to get the puzzle to end in a draw so they can both escape safely, Enigma suddenly appears and brings Jin to the center of the puzzle. As Kaito and Raetsel rush to his aid, Jin regains his memories, allowing him to lead the two safely out of the puzzle via an escape route he had built. However, upon exiting the puzzle, they discover that Jin has been possessed by someone calling himself the Phi Brain, Orpheus.
67	17	"Become a Phi Brain" Transliteration: "Fai Burein to Nare" (Japanese: ファイ・ブレインとなれ)	January 26, 2014 (2014-01-26)
After Kaito, along with Raetsel, Rook, and Freecell, once again sees the vision of a ruined future, Orpheus demonstrates some of his power on Kaito, temporarily showing him an illusion where he failed to rescue Raetsel from the puzzle. Tempting him with the possibility of bringing Lovushka back to life, Orpheus gets Enigma to join his side and the two escape. The next day, Rook and Freecell explain their findings, explaining Orpheus transferred his mind into Jin's body during his battle with Pythagoras, and the scriptures were just a lure to bring people to the Puzzle of God. It is then revealed that Jin himself locked away his own memories in order to suppress Orpheus, and the power Orpheus used on Kaito was an incomplete ability to alter time. Just then, they receive a call from Raetsel, who had decided to join Orpheus as well, saying the only way to save Jin's mind is if either she, Kaito, Gammon, Rook, or Freecell awaken as a Phi Brain and offer their mind to him. As Kaito becomes angered by Rook's suggestion to either find an alternative way of saving Jin, or else kill him to protect the world, Freecell suggests to Kaito that if he can become a Phi Brain before Orpheus, he may able to save the future. Accepting this channel, Kaito heads off with Freecell and Nonoha to Amigne, where Orpheus awaits. Upon arriving, they are shown a vision of Kaito and Nonoha's childhood.
68	18	"I Don't Have To Solve Puzzles" Transliteration: "Watashi, Pazuru ga Tokenakute mo Ii" (Japanese: 私, パズルが解けなくてもいい)	February 2, 2014 (2014-02-02)
Orpheus appears before Kaito and the others, showing each of them alternate versions of their past, including Kaito managing to save his parents and Freecell's mother never having the Orpheus Ring. He then shows a genuine look at Nonoha's past where, even though a fit of binge eating left Nonoha unable to solve puzzles anymore, she still felt joy in seeing Kaito solve puzzles. Orpheus then reveals he made the bracelets to determine worthy vessels for his power, tempting Kaito and Freecell with the offer of becoming Phi Brains so they can change the past, in exchange for Jin's safe return. However, Nonoha knocks some sense into them, reminding them that both the good and the bad things of the past are what made them who they are today, letting them turn down Orpheus' offer and return to reality. Meanwhile, Jin regains temporary use of his body due to Orpheus stressing too much of his power, telling Raetsel he intends to let Orpheus die with him. As Gammon and Elena head towards Amigne themselves, Kaito and the others arrive at Orpheus' puzzle.
69	19	"Because You Were Watching" Transliteration: "Mitetekure dakara" (Japanese: 見ててくれだから)	February 9, 2014 (2014-02-09)
Whilst Kaito's group tackles the puzzle before them, Gammon and Elena meet up with Raetsel in Amigne, eventually coming face to face with Orpheus, who brings them to an illusionary Sage Puzzle with an Orpheus Bracelet up for grabs. Tasked with navigating a sliding puzzle within a time limit, they soon hit a snag when some red panels thought to take them upwards through the maze take them down instead. However, Gammon eventually manages to find the puzzle's secret and reach the goal in time. Returning to the real world, Gammon finds he is now wearing an Orpheus Bracelet, but manages to resist its power and break it with his sheer stubbornness to be better than Kaito. Later that night, as Gammon gives his thanks to Elena for her help, he sees a vision of the future
70	20	"Cheers to the One Hundred Star Jin" Transliteration: "Hoshi Hyakko no Jin ni Kanpai" (Japanese: 星100個のジンに乾杯)	February 16, 2014 (2014-02-16)
Told by Orpheus that she won't be able to become a Phi-Brain as she is, Raetsel agrees to take on a Sage Puzzle in order to obtain an Orpheus Bracelet. Despite Jin's objections, Raetsel enters Orpheus' world to a maze, in which she is only allowed to climb downstairs. During the puzzle, Raetsel sees visions of her past with Jin, desiring the power to change the past so she can stop him from facing up against Pythagoras. Some time later, Raetsel, along with Kaito and Rook, see another memory in which all three of them spent time with Jin, which Rook believes isn't simply an illusion. After figuring out the puzzle's trick, Raetsel solves it and earns an Orpheus Bracelet.
71	21	"Kaito, You Lose" Transliteration: "Kaito, Kimi no Make da" (Japanese: カイト, 君の負けだ)	February 23, 2014 (2014-02-23)
As Souji, Cubic and Ana meet up with the Orpheus Order to learn what they can about Orpheus, Rook, who has received an Orpheus Bracelet from Orpheus, challenges Kaito to a puzzle in which they must race against each other in roller coasters. Rook reveals that Orpheus' ideal is to surpass the gods, stating that he has seen the future that Kaito will fail the puzzle. However, Kaito's determination to save both of them proves Orpheus' future to be false, shattering Rook's resolve. Near the end of the puzzle, though, Rook reveals that the track is designed so only one can escape safely, sacrificing himself to let Kaito escape. This leaves Kaito more determined than ever to become a Phi Brain and defeat Orpheus.
72	22	"That's Why You Mustn't Hesitate" Transliteration: "Dakara, Kimi ga Mayou na" (Japanese: だから、君が迷うな)	March 2, 2014 (2014-03-02)
Called together on a yacht by Enigma, Kaito, Gammon, Freecell, and Raetsel participate into a block-pusing maze puzzle to decide which two shall take on the Puzzle of God. Raetsel is the first to reach the center of the maze and escape after outwitting Freecell, with the remaining players now having to face explosive walls. Kaito and Gammon also manage to open the way to the exit, but Gammon becomes trapped under some rubble, with both Gammon and Freecell urging Kaito to not hesitate and escape on the last escape pod as Enigma sets the yacht to explode.
73	23	"The Two of Us" Transliteration: "Futari de" (Japanese: ふたりで)	March 9, 2014 (2014-03-09)
After Orpheus informs Kaito and Raetsel that they'll be facing the Puzzle of God the next day, Kaito tells Raetsel not to come as he doesn't want anymore casualties. As Kaito shuts himself away whilst the others arrive in Amigne, Baron assures them that Gammon and Freecell made it out of the yacht okay, though he later tells Souji that this is just a lie to keep them from stopping Kaito from solving puzzles. Later that night, Raetsel takes Kaito to a festival, helping to realise the reason what he is fighting for and return to his energetic self. With the two deciding to challenge the Puzzle of God, Kaito and Raetsel return to the others, where Raetsel is invited to spend time with the other girls. As Raetsel feels thankful for the night of fun she had, she manages to break her Orpheus Bracelet. The next day, Kaito and Raetsel arrive at the Puzzle of God, a giant territory based puzzle game that is linked to their very past.
74	24	"Even If Something's Missing" Transliteration: "Kakete ite mo" (Japanese: 欠けていても)	March 16, 2014 (2014-03-16)
As Kaito and Raetsel are shown their pasts, which change based on their hearts' desires, they overlap, showing a vision of Kaito joining Jin and Raetsel on their journey. Upon reaching a point where Jin chooses to leave Raetsel behind and take Kaito with him, Raetsel feels dissatisfied and attempts to change the result, repeating the same loop over upon Jin telling her she is 'missing something', until she chooses to reject the memory altogether and end up in a fabricated world where she never met Jin. In this world, she comes across a brooding Kaito and takes an interest in puzzles, until he one day goes missing. After learning from an encounter with Ana that everyone is 'missing something' in some way, she comes to realise that even if she is lacking something, she is still able to have fun, managing to break free from the fake world and rejoins Kaito. Kaito explains he was able to find Raetsel by taking a path he would never take in the real world, a world where he never went with Jin and learned to love puzzles, where he grew to understand Raetsel's feelings. Just then, Orpheus decides to stir things up, separating Kaito and Raetsel.
75	25	"It's Insanely Fun To Be Alive" Transliteration: "Ikiteiru no ga Muchakucha Tanoshī" (Japanese: 生きているのがムチャクチャ楽しい)	March 23, 2014 (2014-03-23)
As Raetsel challenges Kaito to face her in the Puzzle of God before Jin and Pythagoras, they are greeted by Nonoha who, in this timeline, had grown into a POG Solver. Her feelings that puzzles are solved with the feelings of others break through to Raetsel, bringing her and Kaito back to reality, where they continue the puzzle. Kaito uses his skill to allow Raetsel to win the puzzle, and they are both brought to the top of the tower, where Orpheus attempts to possess Kaito. However, Rook, who had faked his own death, uses Cubic's system to prevent Orpheus from taking over Kaito's mind, whilst Kaito reveals Orpheus and Jin had already merged. After coming to understand that the thing Kaito had what he and Raetsel lacked was the ability to have fun with puzzles, Jin gives his final wishes to Kaito before dying. Some time later, as everyone graduates from Root Academy, Nonoha manages to solve the puzzle Jin left behind and heads off in search of Kaito, who is out helping kids enjoy puzzles.

References

1. "Phi Brain: Puzzle of God Anime Gets 2nd Season". Anime News Network. 2012-01-18. Retrieved 2012-09-26.
2. "Phi Brain Anime Gets 3rd Series in 2013". Anime News Network. 2012-09-23. Retrieved 2012-09-26.
3. "ファイ・ブレイン 神のパズル" (in Japanese). Web Newtype. Archived from the original on September 22, 2011. Retrieved October 2, 2011.
4. "Phi Brain official website". Sunrise. Archived from the original on September 26, 2011. Retrieved October 2, 2011.