Chess Puzzle #Oa2sL — Expert, Black to move, middlegame

Position

White: king h1; queen h6; rooks e3/f1; knight c3; pawns a2/b3/c2/d2/f6/h3. Black: king d7; queen g3; rook a7; bishop b7; knight f3; pawns a5/d5/e4/f7. White is ahead by 4 points of material. Black to move.

Solution (5 moves)

1. Opponent setup: Rexf3 — rook e3→f3, captures knight. Now Black to move.
2. Best move: exf3 — pawn e4→f3, captures rook. Opponent replies Qg7 (queen h6→g7).
3. Best move: Qg2+ — queen g3→g2, gives check. Opponent replies Qxg2 (queen g7→g2, captures queen).
4. Best move: fxg2+ — pawn f3→g2, captures queen, gives check. Opponent replies Kxg2 (king h1→g2, captures pawn).
5. Best move: d4+ — pawn d5→d4, gives check. Opponent replies Kf2 (king g2→f2).
6. Best move: dxc3 — pawn d4→c3, captures knight.

Tactical themes

advanced pawn, collinear move, discovered attack, discovered check, equality, exposed king, fork, middlegame, very long. The key move fxg2+ captures with check, forcing a response.

Position data

FEN: 8/rb1k1p2/5P1Q/p2p4/4p3/1PN1RnqP/P1PP4/5R1K w - - 3 29

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