Chess Puzzle #1c7lZ — Beginner, Black to move, middlegame

Position

White: king h1; queen d1; rooks a1/f1; bishop c4; knight c3; pawns a2/b4/c2/f3/f5/g2/g3. Black: king g8; queen g5; rooks a8/f8; bishop b6; knight f4; pawns a7/b7/c6/d6/f7/g7/h6. Material is balanced. Black to move.

Solution (1 move)

1. Opponent setup: Ne4 — knight c3→e4. Now Black to move.
2. Best move: Qh5# — queen g5→h5, delivers checkmate.

Why this works

Black's queen on h5 delivers checkmate because the white king on h1 has no escape squares and no piece can block or capture the queen. The h-file is controlled entirely by Black's queen; g1 is blocked by White's own pawn on g2, and g2 itself is also controlled by the queen. The knight on f4 controls g2 as well, eliminating any potential flight square. White's rook on f1 cannot interpose on the h-file, and the queen on d1 has no path to h5. The king is trapped on h1 with the queen delivering an unstoppable check along the h-file.

What to practice

When your opponent's king lacks pawn cover on the h-file and your queen can reach the back rank with check, calculate immediately whether escape squares exist. Here, g2 being occupied by White's own pawn transforms the h-file into a mating corridor. Look for positions where your opponent's king-side pawns (especially g2 and h2) create a prison rather than a shield—a queen check along an open file often delivers mate when the king has nowhere to run.

Tactical themes

mate, mate in 1, middlegame, one move. The combination ends with Qh5# delivering checkmate.

Position data

FEN: r4rk1/pp3pp1/1bpp3p/5Pq1/1PB2n2/2N2PP1/P1P3P1/R2Q1R1K w - - 3 18

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