Chess Puzzle #RMyRW — Expert, Black to move, middlegame

Position

White: king a3; queen b7; bishop a4; pawns a2/b3/c5/f3/g2/h2. Black: king g6; queen c2; rook a8; bishop f6; pawns e6/f5/g5/h7. Black is ahead by 3 points of material. Black to move.

Solution (3 moves)

1. Opponent setup: Qxa8 — queen b7→a8, captures rook. Now Black to move.
2. Best move: Qxc5+ — queen c2→c5, captures pawn, gives check. Opponent replies b4 (pawn b3→b4).
3. Best move: Qc1+ — queen c5→c1, gives check. Opponent replies Kb3 (king a3→b3).
4. Best move: Qc3# — queen c1→c3, delivers checkmate.

Tactical themes

endgame, long, mate, mate in 3. The combination ends with Qc3# delivering checkmate.

Position data

FEN: r7/1Q5p/4pbk1/2P2pp1/B7/KP3P2/P1q3PP/8 w - - 3 37

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