skill in go or shogi
Refers to one's ability or strength in the board games go (囲碁) or shogi (将棋). Used in contexts of ranking, improvement, or comparison of players.
He has strong go/shogi skills and won an amateur tournament.
I improve my shogi skill by solving tsume-shogi puzzles every day.
Compound of 棋 (ki, 'go' or 'shogi') and 力 (ryoku, 'power' or 'ability'). The exact historical derivation is uncertain, but the term is straightforwardly understood as 'game-playing strength'.