Chess Puzzle #IDnuj — Intermediate, Black to move, middlegame

Position

White: king g1; queen b1; rooks b6/f1; pawns a2/c7/f2/g2/h2. Black: king f8; queen g4; rooks a8/e8; pawns a4/d2/f7/g7/h6. Material is balanced. Black to move.

Solution (3 moves)

1. Opponent setup: Rd1 — rook f1→d1. Now Black to move.
2. Best move: Qxd1+ — queen g4→d1, captures rook, gives check. Opponent replies Qxd1 (queen b1→d1, captures queen).
3. Best move: Re1+ — rook e8→e1, gives check. Opponent replies Qxe1 (queen d1→e1, captures rook).
4. Best move: dxe1=Q# — pawn d2→e1, captures queen, promotes to queen, delivers checkmate.

Tactical themes

advanced pawn, endgame, fork, long, mate, mate in 3, promotion, sacrifice. The combination ends with dxe1=Q# delivering checkmate.

Position data

FEN: r3rk2/2P2pp1/1R5p/8/p5q1/8/P2p1PPP/1Q3RK1 w - - 1 29

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