Chess Puzzle #BfTum — Intermediate, Black to move, middlegame

Position

White: king c1; queen f2; rook d1; bishop e5; knight d2; pawns a2/b3/c2/e3/f4/g4. Black: king c8; queen d5; rooks d8/h7; bishop g3; pawns a3/c5/f7. White is ahead by 1 point of material. Black to move.

Solution (4 moves)

1. Opponent setup: Qxg3 — queen f2→g3, captures bishop. Now Black to move.
2. Best move: Qxd2+ — queen d5→d2, captures knight, gives check. Opponent replies Rxd2 (rook d1→d2, captures queen).
3. Best move: Rh1+ — rook h7→h1, gives check. Opponent replies Qg1 (queen g3→g1).
4. Best move: Rxg1+ — rook h1→g1, captures queen, gives check. Opponent replies Rd1 (rook d2→d1).
5. Best move: Rgxd1# — rook g1→d1, captures rook, delivers checkmate.

Tactical themes

mate, mate in 4, middlegame, queenside attack, sacrifice, very long. The combination ends with Rgxd1# delivering checkmate.

Position data

FEN: 2kr4/5p1r/8/2pqB3/5PP1/pP2P1b1/P1PN1Q2/2KR4 w - - 0 24

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