Chess Puzzle #423BZ — Advanced, Black to move, middlegame

Position

White: king f2; queen g5; rooks b1/e1; pawns a3/c2/c3/d4/g3. Black: king c8; rook h6; bishop e4; knight f5; pawns a7/b6/d5/e6/g7. White is ahead by 8 points of material. Black to move.

Solution (3 moves)

1. Opponent setup: g4 — pawn g3→g4. Now Black to move.
2. Best move: Rh2+ — rook h6→h2, gives check. Opponent replies Kf1 (king f2→f1).
3. Best move: Ng3+ — knight f5→g3, gives check. Opponent replies Kg1 (king f1→g1).
4. Best move: Rg2# — rook h2→g2, delivers checkmate.

Tactical themes

endgame, exposed king, long, mate, mate in 3. The combination ends with Rg2# delivering checkmate.

Position data

FEN: 2k5/p5p1/1p2p2r/3p1nQ1/3Pb3/P1P3P1/2P2K2/1R2R3 w - - 15 40

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