Chess Puzzle #CsAKg — Advanced, Black to move, middlegame

Position

White: king d1; queen a7; rooks b1/e2; bishop h3; pawns a2/f3/g5/h4. Black: king c8; queen c1; rooks d5/d8; knight d3; pawns a6/b5/d2/f5/f7/h7. Black is ahead by 2 points of material. Black to move.

Solution (1 move)

1. Opponent setup: Rxc1+ — rook b1→c1, captures queen, gives check. Now Black to move.
2. Best move: dxc1=Q# — pawn d2→c1, captures rook, promotes to queen, delivers checkmate.

Tactical themes

advanced pawn, master, mate, mate in 1, middlegame, one move, promotion. The combination ends with dxc1=Q# delivering checkmate.

Position data

FEN: 2kr4/Q4p1p/p7/1p1r1pP1/7P/3n1P1B/P2pR3/1RqK4 w - - 2 29

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