Click or drag to move • Dots = quiet, Rings = capture
Game Controls
Flip board
Move List 0 moves
How to verify
• Start position has 20 legal moves
• Fool's mate: f3 e5 g4 Qh4# → checkmate
• En passant appears only one move
• Pin test: exposes king → rejected
Use game.legalMoves().length, game.fen(), game.move('e2e4') in console.