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

Position

White: king g1; rooks a1/f1; knight g6; pawns b4/d4/e7/f2/g3/h5. Black: king h7; rooks a8/f6; bishops d6/f3; pawns b5/c4/g5/g7/h6. Black is ahead by 2 points of material. White to move.

Solution (2 moves)

1. Opponent setup: Rxa1 — rook a8→a1, captures rook. Now White to move.
2. Best move: e8=Q — pawn e7→e8, promotes to queen. Opponent replies Rxf1+ (rook a1→f1, captures rook, gives check).
3. Best move: Kxf1 — king g1→f1, captures rook.

Tactical themes

advanced pawn, endgame, equality, promotion, short. The key move is e8=Q.

Position data

FEN: r7/4P1pk/3b1rNp/1p4pP/1PpP4/5bP1/5P2/R4RK1 b - - 0 29

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