Chess Puzzle #RGS2Q — Advanced, Black to move, middlegame

Position

White: king g1; queen c4; rook d3; bishop e5; pawns a4/b2/c3/e4/f2/g2/h2. Black: king b7; queen c6; rook d8; bishop e7; pawns a6/b6/c5/e6/f7/g4/h6. Material is balanced. Black to move.

Solution (3 moves)

1. Opponent setup: f3 — pawn f2→f3. Now Black to move.
2. Best move: b5 — pawn b6→b5. Opponent replies axb5 (pawn a4→b5, captures pawn).
3. Best move: axb5 — pawn a6→b5, captures pawn. Opponent replies Rxd8 (rook d3→d8, captures rook).
4. Best move: bxc4 — pawn b5→c4, captures queen.

Tactical themes

crushing, endgame, long. The key move is b5.

Position data

FEN: 3r4/1k2bp2/ppq1p2p/2p1B3/P1Q1P1p1/2PR4/1P3PPP/6K1 w - - 1 27

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