Chess Puzzle #YoMSt — Expert, White to move, endgame

Position

White: king g1; queen e6; pawns a6/c3/h3. Black: king e8; rooks a2/g7; bishop g2; pawns c4/f3/h6. Black is ahead by 4 points of material. White to move.

Solution (4 moves)

1. Opponent setup: Re7 — rook g7→e7. Now White to move.
2. Best move: Qc8+ — queen e6→c8, gives check. Opponent replies Kf7 (king e8→f7).
3. Best move: Qxc4+ — queen c8→c4, captures pawn, gives check. Opponent replies Kg7 (king f7→g7).
4. Best move: Qxa2 — queen c4→a2, captures rook. Opponent replies Re1+ (rook e7→e1, gives check).
5. Best move: Kh2 — king g1→h2.

Tactical themes

advantage, endgame, exposed king, fork, very long. The key move Qxc4+ captures with check, forcing a response.

Position data

FEN: 4k3/6r1/P3Q2p/8/2p5/2P2p1P/r5b1/6K1 b - - 17 44

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