Chess Puzzle #7gRiO — Advanced, Black to move, middlegame

Position

White: king h1; queen b5; rook c1; knight f3; pawns a3/b4/d4/e3/f2/g3. Black: king f8; queen h3; rook h8; bishop d8; pawns a7/d5/e6/f7/h2. White is ahead by 1 point of material. Black to move.

Solution (2 moves)

1. Opponent setup: Rc8 — rook c1→c8. Now Black to move.
2. Best move: Qg2+ — queen h3→g2, gives check. Opponent replies Kxg2 (king h1→g2, captures queen).
3. Best move: h1=Q# — pawn h2→h1, promotes to queen, delivers checkmate.

Tactical themes

advanced pawn, attraction, endgame, mate, mate in 2, promotion, short. The combination ends with h1=Q# delivering checkmate.

Position data

FEN: 3b1k1r/p4p2/4p3/1Q1p4/1P1P4/P3PNPq/5P1p/2R4K w - - 2 30

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