From Denpa:
Rei Kiriyama is a child prodigy. Rei Kiriyama is also an orphan who lives alone in an empty apartment. Rei Kiriyama is a teen working in an adult world. Life is complicated for Rei. He's an up-and-coming shogi (Japanese chess) player on the verge of turning pro but he has no home life or much of a life period outside his board game but thankfully with the help of some life-long friends he has an opportunity to start all over again.
Note: Nominated for the 2nd Annual Manga Taishou in 2009 and won the award in 2011. Won the Kodansha Manga Award in the general category (shared with Space Brothers) in 2011, the Grand Prize at the 18th Tezuka Osamu Cultural Prize in 2014 and the 24th Japan Media Arts Festival Awards Grand Prize in 2021.
17 Volumes (Ongoing)