Chess Puzzle #FlL3S — Expert, Black to move, endgame

Position

White: king e3; queen c4; rook c2; bishop d5; pawns d3/g3. Black: king b8; queen g1; rook f8; pawns b6/g6. White is ahead by 3 points of material. Black to move.

Solution (4 moves)

1. Opponent setup: Kd2 — king e3→d2. Now Black to move.
2. Best move: Rf2+ — rook f8→f2, gives check. Opponent replies Kc3 (king d2→c3).
3. Best move: Qa1+ — queen g1→a1, gives check. Opponent replies Kb4 (king c3→b4).
4. Best move: Qb1+ — queen a1→b1, gives check. Opponent replies Ka3 (king b4→a3).
5. Best move: Qxc2 — queen b1→c2, captures rook.

Tactical themes

advantage, endgame, very long. The key move is Rf2+.

Position data

FEN: 1k3r2/8/1p4p1/3B4/2Q5/3PK1P1/2R5/6q1 w - - 2 43

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