Chess Puzzle #ot3jc — Expert, Black to move, middlegame

Position

White: king g1; queen c2; rooks a1/f1; bishops c1/e2; knight h2; pawns a3/c3/f2. Black: king g8; queen h3; rooks e4/f8; knight f6; pawns a6/b5/c7/f7/g6/h7. White is ahead by 3 points of material. Black to move.

Solution (5 moves)

1. Opponent setup: Bg5 — bishop c1→g5. Now Black to move.
2. Best move: Ng4 — knight f6→g4. Opponent replies Bxg4 (bishop e2→g4, captures knight).
3. Best move: Rxg4+ — rook e4→g4, captures bishop, gives check. Opponent replies Nxg4 (knight h2→g4, captures rook).
4. Best move: Qxg4+ — queen h3→g4, captures knight, gives check. Opponent replies Kh2 (king g1→h2).
5. Best move: Qh5+ — queen g4→h5, gives check. Opponent replies Kg3 (king h2→g3).
6. Best move: Qxg5+ — queen h5→g5, captures bishop, gives check.

Tactical themes

equality, fork, middlegame, sacrifice, very long. The key move Rxg4+ captures with check, forcing a response.

Position data

FEN: 5rk1/2p2p1p/p4np1/1p6/4r3/P1P4q/2Q1BP1N/R1B2RK1 w - - 0 21

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