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

Rating 1411 · Intermediate · attraction, endgame, long, mate, mate in 3, sacrifice.

Position

White: king h1; queen h5; rook g1; knight f8; pawns a3/b4/g2/h3. Black: king g8; queen f2; rook b2; pawns a7/b7/g3/g7/h6. White is ahead by 2 points of material. Black to move.

Solution (3 moves)

  1. Opponent setup: Ng6 — knight f8→g6. Now Black to move.
  2. Best move: Qxg1+ — queen f2→g1, captures rook, gives check. Opponent replies Kxg1 (king h1→g1, captures queen).
  3. Best move: Rb1+ — rook b2→b1, gives check. Opponent replies Qd1 (queen h5→d1).
  4. Best move: Rxd1# — rook b1→d1, captures queen, delivers checkmate.

Tactical themes

attraction, endgame, long, mate, mate in 3, sacrifice. The combination ends with Rxd1# delivering checkmate.

Position data

FEN: 5Nk1/pp4p1/7p/7Q/1P6/P5pP/1r3qP1/6RK w - - 0 32

Solve this puzzle interactively on Brilliant Knight — free tactics training powered by Stockfish 18, no signup required.

Puzzle data from the Lichess puzzle database (CC0). Analysis powered by Stockfish 18 in your browser.