Chess Puzzle #J539Q — Intermediate, Black to move, middlegame

Rating 1401 · Intermediate · crushing, endgame, master, short.

Position

White: king g1; queen d3; rook d1; bishop c4; pawns a5/b3/d5/f2/g3. Black: king g7; queen g4; rook d8; knight g5; pawns a6/b7/f7/g6/h6. Material is balanced. Black to move.

Solution (2 moves)

  1. Opponent setup: Qd4+ — queen d3→d4, gives check. Now Black to move.
  2. Best move: Qxd4 — queen g4→d4, captures queen. Opponent replies Rxd4 (rook d1→d4, captures queen).
  3. Best move: Nf3+ — knight g5→f3, gives check.

Why this works

After 35.Qd4+, Black forces a decisive material advantage through a precise two-move sequence. The queen capture 1...Qxd4 removes White's most active piece; when White recaptures with 2.Rxd4, the knight on g5 delivers 2...Nf3+, a royal fork that checks the king on g1 and simultaneously attacks the rook on d4. The king must move (no piece blocks the check from f3 to g1, and f3 is not occupied by any White defender), leaving the rook undefended. Black wins the exchange—a rook for a knight—since the knight is safe on f3 (no White piece controls that square) and Black has eliminated White's remaining major pieces from the board with tempo. The combination works because the queen trade was forced (responding to check) and the fork follows with a tempo that prevents rook-saving moves.

What to practice

In positions where you're down material or facing a strong queen, look for forcing sequences that trade queens onto a square where your knight can deliver a royal fork with check. The pattern here is critical: after the forced queen exchange, the knight jump with check wins time—your opponent must respond to the check before defending the rook. This 'forced trade followed by knight fork' combination is a reliable way to recover material or achieve a winning endgame from a difficult middlegame position.

Tactical themes

crushing, endgame, master, short. The key move Qxd4 wins material.

Position data

FEN: 3r4/1p3pk1/p5pp/P2P2n1/2B3q1/1P1Q2P1/5P2/3R2K1 w - - 10 35

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

Analysis generated with Stockfish 18 and AI assistance. Puzzle data from the Lichess puzzle database (CC0).