Chess Puzzle #ErR4c — Master, Black to move, middlegame

Position

White: king f1; queen e4; rook d1; bishops b2/b3; pawns a2/c2/c3/e5/f3/g2. Black: king g8; queen h1; rook d8; pawns a5/b7/c7/f7/g7/h7. White is ahead by 6 points of material. Black to move.

Solution (4 moves)

1. Opponent setup: Ke2 — king f1→e2. Now Black to move.
2. Best move: Qxg2+ — queen h1→g2, captures pawn, gives check. Opponent replies Ke3 (king e2→e3).
3. Best move: Rxd1 — rook d8→d1, captures rook. Opponent replies Bxf7+ (bishop b3→f7, captures pawn, gives check).
4. Best move: Kh8 — king g8→h8. Opponent replies Qg4 (queen e4→g4).
5. Best move: Qd2+ — queen g2→d2, gives check.

Tactical themes

crushing, deflection, endgame, very long. The key move Qxg2+ captures with check, forcing a response.

Position data

FEN: 3r2k1/1pp2ppp/8/p3P3/4Q3/1BP2P2/PBP3P1/3R1K1q w - - 1 22

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