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

Position

White: king g1; queen h6; rook g4; knight f3; pawns a2/c3/d4/e5/g3/h4. Black: king d8; queen d7; rook b8; knight e7; pawns a6/c6/d5/f7. White is ahead by 2 points of material. Black to move.

Solution (4 moves)

1. Opponent setup: Ng5 — knight f3→g5. Now Black to move.
2. Best move: Rb1+ — rook b8→b1, gives check. Opponent replies Kh2 (king g1→h2).
3. Best move: Qxg4 — queen d7→g4, captures rook. Opponent replies Qf8+ (queen h6→f8, gives check).
4. Best move: Kd7 — king d8→d7. Opponent replies e6+ (pawn e5→e6, gives check).
5. Best move: fxe6 — pawn f7→e6, captures pawn.

Tactical themes

crushing, endgame, very long. The key move is Rb1+.

Position data

FEN: 1r1k4/3qnp2/p1p4Q/3pP3/3P2RP/2P2NP1/P7/6K1 w - - 5 39

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