Looking at the position carefully (I'm up a knight, black king on g8 with g7 empty), I see a mate: - **Nh6+** — knight from f7 to h6 gives check to the king on g8. - Black king's escape squares: f8 (own rook), g7 (covered by the Bf6), h8 (covered by Bf6 via the empty g7), h7 (own pawn), f7 (occupied). No legal king move. - No black piece can capture the knight on h6 (the h7 pawn only attacks g6; the bishop on c8 can't reach h6; rooks can't either). That's **checkmate**. Playing it.