Chess Puzzle #IVIoA — Advanced, White to move, middlegame

Position

White: king g1; queen d4; rook d1; bishop a4; pawns b4/f2/g2/h3. Black: king g8; queen h6; rook f8; knight c3; pawns e6/f7/g7/h7. Material is balanced. White to move.

Solution (2 moves)

1. Opponent setup: Nxa4 — knight c3→a4, captures bishop. Now White to move.
2. Best move: b5 — pawn b4→b5. Opponent replies Qf6 (queen h6→f6).
3. Best move: Qxa4 — queen d4→a4, captures knight.

Tactical themes

discovered attack, endgame, equality, quiet move, short, trapped piece. The key move is b5.

Position data

FEN: 5rk1/5ppp/4p2q/8/BP1Q4/2n4P/5PP1/3R2K1 b - - 2 29

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