Chess Puzzle #jySrY — Expert, White to move, middlegame

Position

White: king g1; queen a3; rook a8; knight e4; pawns f2/g2/h3. Black: king c8; queen d5; rooks d8/f8; pawns c6/f4/g7/h7. Black is ahead by 3 points of material. White to move.

Solution (5 moves)

1. Opponent setup: Kd7 — king c8→d7. Now White to move.
2. Best move: Ra7+ — rook a8→a7, gives check. Opponent replies Ke6 (king d7→e6).
3. Best move: Qe7+ — queen a3→e7, gives check. Opponent replies Kf5 (king e6→f5).
4. Best move: g4+ — pawn g2→g4, gives check. Opponent replies fxg3 (pawn f4→g3, captures pawn).
5. Best move: Nxg3+ — knight e4→g3, captures pawn, gives check. Opponent replies Kg6 (king f5→g6).
6. Best move: Qxg7# — queen e7→g7, captures pawn, delivers checkmate.

Tactical themes

endgame, mate, mate in 5, very long. The combination ends with Qxg7# delivering checkmate.

Position data

FEN: R1kr1r2/6pp/2p5/3q4/4Np2/Q6P/5PP1/6K1 b - - 1 29

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