Chess Puzzle #FOg6c — Master, Black to move, middlegame

Position

White: king g1; queen d2; rook c5; knight f4; pawns a2/b4/d5/f2/g3/h2. Black: king g8; queen f5; rook e8; bishop b7; pawns a7/f7/g6/h7. White is ahead by 2 points of material. Black to move.

Solution (4 moves)

1. Opponent setup: d6 — pawn d5→d6. Now Black to move.
2. Best move: Qb1+ — queen f5→b1, gives check. Opponent replies Rc1 (rook c5→c1).
3. Best move: Qe4 — queen b1→e4. Opponent replies f3 (pawn f2→f3).
4. Best move: Qxf3 — queen e4→f3, captures pawn. Opponent replies d7 (pawn d6→d7).
5. Best move: Qh1+ — queen f3→h1, gives check.

Tactical themes

crushing, endgame, very long. The key move is Qb1+.

Position data

FEN: 4r1k1/pb3p1p/6p1/2RP1q2/1P3N2/6P1/P2Q1P1P/6K1 w - - 0 29

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