Chess Puzzle #6FSiD — Advanced, Black to move, middlegame

Position

White: king g1; queen h4; rooks f1/h2; pawns a2/e5/f4/g4. Black: king g8; queen c3; rooks d5/g3; pawns a6/e6/f7/g6. Material is balanced. Black to move.

Solution (3 moves)

1. Opponent setup: Kh1 — king g1→h1. Now Black to move.
2. Best move: Qf3+ — queen c3→f3, gives check. Opponent replies Rxf3 (rook f1→f3, captures queen).
3. Best move: Rd1+ — rook d5→d1, gives check. Opponent replies Rf1 (rook f3→f1).
4. Best move: Rxf1# — rook d1→f1, captures rook, delivers checkmate.

Tactical themes

endgame, exposed king, long, mate, mate in 3, sacrifice. The combination ends with Rxf1# delivering checkmate.

Position data

FEN: 6k1/5p2/p3p1p1/3rP3/5PPQ/2q3r1/P6R/5RK1 w - - 8 35

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