Chess Puzzle #0ngjM — Beginner, Black to move, middlegame

Position

White: king g1; queen g3; bishops b3/e3; knight f3; pawns a2/b2/c3/f2/g2/h2. Black: king g8; queen f5; bishop e2; pawns d5/e6/g6/h7. White is ahead by 8 points of material. Black to move.

Solution (4 moves)

1. Opponent setup: Bh6 — bishop e3→h6. Now Black to move.
2. Best move: Qb1+ — queen f5→b1, gives check. Opponent replies Bc1 (bishop h6→c1).
3. Best move: Qxc1+ — queen b1→c1, captures bishop, gives check. Opponent replies Bd1 (bishop b3→d1).
4. Best move: Qxd1+ — queen c1→d1, captures bishop, gives check. Opponent replies Ne1 (knight f3→e1).
5. Best move: Qxe1# — queen d1→e1, captures knight, delivers checkmate.

Tactical themes

endgame, mate, mate in 4, very long. The combination ends with Qxe1# delivering checkmate.

Position data

FEN: 6k1/7p/4p1p1/3p1q2/8/1BP1BNQ1/PP2bPPP/6K1 w - - 0 37

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