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

Position

White: king a2; queen c7; rooks d1/f1; knights e5/f3; pawns a3/b2/c3/d4/e3/f2/g2/g3. Black: king g8; queen f8; rooks b6/b8; knight e4; pawns a4/d5/e6/f7/g7/h6. White is ahead by 5 points of material. Black to move.

Solution (4 moves)

1. Opponent setup: Nd3 — knight e5→d3. Now Black to move.
2. Best move: Rxb2+ — rook b6→b2, captures pawn, gives check. Opponent replies Nxb2 (knight d3→b2, captures rook).
3. Best move: Rb3 — rook b8→b3. Opponent replies Kb1 (king a2→b1).
4. Best move: Qxa3 — queen f8→a3, captures pawn. Opponent replies Qc8+ (queen c7→c8, gives check).
5. Best move: Kh7 — king g8→h7.

Tactical themes

clearance, crushing, middlegame, sacrifice, very long. The key move Rxb2+ captures with check, forcing a response.

Position data

FEN: 1r3qk1/2Q2pp1/1r2p2p/3pN3/p2Pn3/P1P1PNP1/KP3PP1/3R1R2 w - - 1 23

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