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

Position

White: king e3; queen f6; rook d2; bishop g4; pawns a2/d3/d5/e4/g3. Black: king b8; queen e1; knight c3; pawns a7/b7/c7/d6/e5. White is ahead by 5 points of material. Black to move.

Solution (4 moves)

1. Opponent setup: Be2 — bishop g4→e2. Now Black to move.
2. Best move: Qxg3+ — queen e1→g3, captures pawn, gives check. Opponent replies Qf3 (queen f6→f3).
3. Best move: Qg1+ — queen g3→g1, gives check. Opponent replies Qf2 (queen f3→f2).
4. Best move: Qg5+ — queen g1→g5, gives check. Opponent replies Kf3 (king e3→f3).
5. Best move: Qxd2 — queen g5→d2, captures rook.

Tactical themes

advantage, deflection, endgame, skewer, very long. The key move Qxg3+ captures with check, forcing a response.

Position data

FEN: 1k6/ppp5/3p1Q2/3Pp3/4P1B1/2nPK1P1/P2R4/4q3 w - - 6 30

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