Chess Puzzle #pSQ53 — Advanced, Black to move, middlegame

Position

White: king h1; queen e4; rook e1; knight a4; pawns a2/b3/c2/d3/g2/h3. Black: king h8; queen d6; rook f8; bishop h6; pawns a7/e3/h7. White is ahead by 3 points of material. Black to move.

Solution (4 moves)

1. Opponent setup: Nb2 — knight a4→b2. Now Black to move.
2. Best move: Qg3 — queen d6→g3. Opponent replies Qd4+ (queen e4→d4, gives check).
3. Best move: Bg7 — bishop h6→g7. Opponent replies Qxe3 (queen d4→e3, captures pawn).
4. Best move: Rf1+ — rook f8→f1, gives check. Opponent replies Rxf1 (rook e1→f1, captures rook).
5. Best move: Qxe3 — queen g3→e3, captures queen.

Tactical themes

advantage, defensive move, deflection, endgame, very long. The key move is Qg3.

Position data

FEN: 5r1k/p6p/3q3b/8/N3Q3/1P1Pp2P/P1P3P1/4R2K w - - 5 25

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