Chess Puzzle #gSX5O — Master, Black to move, middlegame

Position

White: king g1; queen h7; rook e8; bishop f5; pawns a2/b3/f7/g2/h2. Black: king c7; queen f6; rooks b4/f8; pawns a7/c5/c6/d6. Black is ahead by 1 point of material. Black to move.

Solution (5 moves)

1. Opponent setup: Rxf8 — rook e8→f8, captures rook. Now Black to move.
2. Best move: Qd4+ — queen f6→d4, gives check. Opponent replies Kf1 (king g1→f1).
3. Best move: Qd1+ — queen d4→d1, gives check. Opponent replies Kf2 (king f1→f2).
4. Best move: Qd2+ — queen d1→d2, gives check. Opponent replies Kf3 (king f2→f3).
5. Best move: Rf4+ — rook b4→f4, gives check. Opponent replies Kg3 (king f3→g3).
6. Best move: Qe3# — queen d2→e3, delivers checkmate.

Tactical themes

endgame, mate, mate in 5, very long. The combination ends with Qe3# delivering checkmate.

Position data

FEN: 4Rr2/p1k2P1Q/2pp1q2/2p2B2/1r6/1P6/P5PP/6K1 w - - 9 28

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