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

Position

White: king g2; queen e4; knights e6/g4; pawns a5/f2. Black: king g7; queen f7; rooks b3/h3; pawns c5/d6/e7/f5/g6. Black is ahead by 7 points of material. White to move.

Solution (3 moves)

1. Opponent setup: Kg8 — king g7→g8. Now White to move.
2. Best move: Qa8+ — queen e4→a8, gives check. Opponent replies Kh7 (king g8→h7).
3. Best move: Ng5+ — knight e6→g5, gives check. Opponent replies Kg7 (king h7→g7).
4. Best move: Nxf7 — knight g5→f7, captures queen.

Tactical themes

advantage, endgame, exposed king, fork, long. The key move is Qa8+.

Position data

FEN: 8/4pqk1/3pN1p1/P1p2p2/4Q1N1/1r5r/5PK1/8 b - - 1 37

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