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

Position

White: king g2; queen b7; bishop d3; pawns a6/c4/g3/h5. Black: king h8; rook f2; bishops d4/g8; pawns c5/g5/h6. White is ahead by 2 points of material. Black to move.

Solution (4 moves)

1. Opponent setup: Kh3 — king g2→h3. Now Black to move.
2. Best move: g4+ — pawn g5→g4, gives check. Opponent replies Kh4 (king h3→h4).
3. Best move: Bf6+ — bishop d4→f6, gives check. Opponent replies Kxg4 (king h4→g4, captures pawn).
4. Best move: Be6+ — bishop g8→e6, gives check. Opponent replies Bf5 (bishop d3→f5).
5. Best move: Bxf5# — bishop e6→f5, captures bishop, delivers checkmate.

Tactical themes

endgame, mate, mate in 4, morphys mate, very long. The combination ends with Bxf5# delivering checkmate.

Position data

FEN: 6bk/1Q6/P6p/2p3pP/2Pb4/3B2P1/5rK1/8 w - - 0 42

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