Chess Puzzle #ix9l0 — Advanced, Black to move, middlegame

Position

White: king f1; queen d5; rooks b7/c8; knight f3; pawns d4/e3/f2/g2/h3. Black: king h7; queen g6; rook e6; bishop d6; knight f8; pawns g5/g7/h6. White is ahead by 4 points of material. Black to move.

Solution (3 moves)

1. Opponent setup: Rd8 — rook c8→d8. Now Black to move.
2. Best move: Qd3+ — queen g6→d3, gives check. Opponent replies Ke1 (king f1→e1).
3. Best move: Rxe3+ — rook e6→e3, captures pawn, gives check. Opponent replies fxe3 (pawn f2→e3, captures rook).
4. Best move: Bg3# — bishop d6→g3, delivers checkmate.

Tactical themes

long, mate, mate in 3, middlegame, sacrifice. The combination ends with Bg3# delivering checkmate.

Position data

FEN: 2R2n2/1R4pk/3br1qp/3Q2p1/3P4/4PN1P/5PP1/5K2 w - - 5 30

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