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

Position

White: king c1; queen h8; rook d1; bishop d2; knight g1; pawns a2/b2/e5/f2/h2. Black: king f7; queen b5; bishops e7/h1; pawns c5/d7/g7/h7. White is ahead by 6 points of material. Black to move.

Solution (4 moves)

1. Opponent setup: Kb1 — king c1→b1. Now Black to move.
2. Best move: Be4+ — bishop h1→e4, gives check. Opponent replies Ka1 (king b1→a1).
3. Best move: Qa4 — queen b5→a4. Opponent replies Rc1 (rook d1→c1).
4. Best move: Bd5 — bishop e4→d5. Opponent replies a3 (pawn a2→a3).
5. Best move: Qb3 — queen a4→b3.

Tactical themes

advantage, middlegame, very long. The key move is Be4+.

Position data

FEN: 7Q/3pbkpp/8/1qp1P3/8/8/PP1B1P1P/2KR2Nb w - - 0 17

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