Tonari entered the Japan Shogi Association's apprentice school at the rank of 6-kyū as a student of shogi professional Kōji Tanigawa in September 2000. He was promoted to the rank of 3-dan in October 2007, and he became the only apprentice professional 3-dan to win the Shinjin-Ō [ja] tournament when he defeated shogi professional Tetsuya Fujimori 2 games to 1 for the 44th Shinjin-Ō title in October 2013.[4] Tonari obtained professional status and the rank of 4-dan in April 2016 after winning the 58th 3-dan League with a record of 14 wins and 4 losses.[2][5]
Shogi professional
Tonari invented the Tonari opening, which is named after him.
Tonari has yet to appear in a major title match, but he has won one non-major title championship.[7]
Awards and honors
Tonari received the Japan Shogi Association Annual Shogi Award for "Special Game of the Year" for the 2014 Shogi Year for his game against Mitsunori Makino in the Round 2 of the 46th Shinjin-Ō [ja] tournament.[8][9]