Chess Puzzle #3MYBs — Intermediate, Black to move, middlegame

Position

White: king g1; queen f3; rooks a1/f1; bishops d3/g5; knight b1; pawns a2/b2/c2/e4/f2/g2/h2. Black: king g8; queen e5; rooks a8/f8; bishop d6; knights b8/f6; pawns a7/b7/c7/f7/g7/h7. White is ahead by 1 point of material. Black to move.

Solution (1 move)

1. Opponent setup: Bxf6 — bishop g5→f6, captures knight. Now Black to move.
2. Best move: Qxh2# — queen e5→h2, captures pawn, delivers checkmate.

Why this works

After White's 10.Bxf6, Black's queen on e5 has a clear path to h2, where it delivers checkmate. The white king on g1 has no escape squares: f1 is blocked by White's own rook, h1 is controlled by the queen on h2, and f2 is occupied by White's own pawn. Critically, White cannot interpose or capture the queen because no white piece defends h2 or can reach it. The queen on f3 cannot retreat to defend the kingside, and the bishop on d3 has no diagonal to h2. White's last move—capturing the knight on f6—removed Black's only defender of the h2 square but failed to recognize the back-rank vulnerability created by the pawn structure on f2 and g2.

What to practice

In the opening, when your opponent's king has castled into a pawn shelter with f2 and g2 intact, look for queen checks on the h-file or long diagonal that your opponent cannot parry. The pattern here—queen to h2 with the king trapped by its own pawns—is a recurring mating theme. Train yourself to spot when a forcing capture (like Bxf6) removes a defender without addressing the real threat brewing on the opposite side of the board.

Tactical themes

kingside attack, mate, mate in 1, one move, opening. The combination ends with Qxh2# delivering checkmate.

Position data

FEN: rn3rk1/ppp2ppp/3b1n2/4q1B1/4P3/3B1Q2/PPP2PPP/RN3RK1 w - - 1 10

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