Katō was born in Makinohara, Shizuoka Prefecture on October 6, 1993.[1] She started playing shogi when she was about five years old.[2][3] She started taking shogi lessons and was traveling outside of Shizuoka Prefecture to play in shogi tournaments by the time she was a third-grade elementary school student, and won a national shogi championship when she was a fifth-grade elementary school student.[4]
In March 2019, Katō decided to leave the apprentice school and petitioned the JSA to become a women's professional shogi player instead. In consideration of her past success in women's professional shogi tournaments, the JSA decided to award Katō the rank of 3-dan instead of her last rank as an apprentice professional which is the common practice for women apprentice professionals ranked 2-kyū or higher.[2][6]
Women's shogi professional
In November 2021, Katō won the 3rd Seirei [ja] title (September – November 2021) by defeating the defending champion Kana Satomi 3 games to 2.[7] Katō, however, was unable to successfully defend her Seirei title the following year, losing a rematch against Satomi 3 games to none in the 4th Seirei Title Match (July – August 2022).[8] The pair faced each other again in major title match later in 2022 when Katō challenged Satomi for the 12th Women's Ōza title (October – December 2022). Satomi successfully defended her Women's Ōza title 3 games to 2.[9]
Katō advanced to Women's Ōza title match against Satomi for the second year in a row, but once again was unsuccessful, losing the 13th Women's Ōza title match 3 games to 1.[10]
In April – May 2024, Katō challenged Satomi (now playing under her married name "Fukuma") for the Women's Ōi [ja] title, but lost the 35th Women's Ōi Title Match 3 games to 0.[11] Katō and Fukuma met again a few months later in the 6th Seirei title match (July – August 2024), but Fukuma won the match 3 games to 1.[12]
Notes: 1. No symbol denotes JSA affiliation 2. An asterisk (*) denotes LPSA affiliation 3. A cross (†) denotes unaffiliated. 4, A two-barred cross (‡) denotes a JSA apprentice school player.