Tadashi Ōishi
# Tadashi Ōishi

Tadashi Ōishi (大石 直嗣, Ōishi Tadashi, born September 16, 1989) is a Japanese professional shogi player ranked 7-dan.

## Early life

Tadashi Ōishi was born in Yao, Osaka on September 16, 1989. He learned how to play shogi from his father when he was a first-grade elementary school student. He represented Osaka Prefecture in the 26th Elementary School Student Meijin Tournament [ja] in March 2001 and then entered the Japan Shogi Association's apprentice school in September of that same year at the rank of 6-kyū as a student of shogi professional Nobuo Mori [ja]. He was promoted to the rank of 1-dan in July 2001.

Ōishi was promoted to 3-dan in 2006 and finished the 40th 3-dan League (October 2006 – March 2009) tied for third place with a record of 13 wins and 5 losses. The following season, Ōishi moved up to the number two position in the league table, but ended up finishing with a record of 7 wins and 11 losses. In his third season of 3-dan League play, Ōishi finished with record of 12 wins and 6 losses, winning his last six games to finish tied for fourth place. Ōishi finished the 43rd 3-dan league (April 2008 – September 2008) with a record of 13 wins and 5 losses, once again tying for third place. He finally obtained full professional status and the rank of 4-dan in April 2009 after finishing second in the 44th 3-dan League (October 2008 – March 2009) with a record of 13 wins and 5 losses.

## Promotion history

The promotion history for Ōishi is as follows:

* 2001, September 25: 6-kyū
* 2009, April 1: 4-dan
* 2013, April 22: 5-dan
* 2013, May 15: 6-dan
* 2017, November 1: 7-dan

## Awards and honors

Ōishi received the Japan Shogi Association Annual Shogi Award for "Best New Player" in 2013.

