パズル

Visit every square on the board exactly once using only knight moves. Choose your board size and race the clock.

White to move — find the shortest winning line. Force Black into zugzwang, where every move makes their position worse.

Capture all 16 pawns with a single knight in exactly 16 moves — one capture per move. Race the clock and claim your spot on the leaderboard.

Build your own chess puzzle by dragging pieces onto the board, then share the link. Others play white against Stockfish Hard — fastest checkmate wins the leaderboard.