Chess Puzzle #648me — Advanced, Black to move, middlegame

Position

White: king e2; rook a3; knight d3; pawns d4/e3/f2/g2/h2. Black: king g8; rook b8; pawns b3/c3/f7/g7/h7. White is ahead by 3 points of material. Black to move.

Solution (2 moves)

1. Opponent setup: Kd1 — king e2→d1. Now Black to move.
2. Best move: b2 — pawn b3→b2. Opponent replies Rxc3 (rook a3→c3, captures pawn).
3. Best move: b1=Q+ — pawn b2→b1, promotes to queen, gives check.

Tactical themes

advanced pawn, advantage, endgame, promotion, short. The key move is b2.

Position data

FEN: 1r4k1/5ppp/8/8/3P4/RppNP3/4KPPP/8 w - - 2 32

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