Chess Buddy v1.2.0 (live)

White to move

♟ How to Play Chess Buddy

▶ Playing

  • Click a piece, then a highlighted square to move.
  • Play locks to the side to move and lets Stockfish play that side only. You play the other side.
  • Press Play again to stop.
  • Flip rotates the board. Coords shows square labels.

📖 Openings

  • The current opening is detected automatically and shown in the status line.
  • A gold flash appears when a new opening is recognised.
  • Click the 📖 ? button to re-open the current opening's details while it's still in the book.

🎯 Best Moves

  • Highlights Stockfish's top moves on the board.
  • Green = best move, blue = 2nd best, gold = book move.
  • Weak moves (blunders/mistakes/inaccuracies) are shown as dashed red/orange/yellow arrows — real engine evals, not guesses.

⚔️ Threats

  • Red/orange arrows = enemy attacks on your pieces.
  • Green dashed arrows = your pieces defending attacked squares.
  • ⚠ = hanging piece (undefended or losing material).
  • King-zone shading = pressure on your king.
  • Light blue / red overlays = enemy reach (sliders + knights + pawns).

💾 Export

  • FEN copies the current position.
  • PGN copies the full game.
1st Best 2nd Best 3rd Best 4th Best 5th Best 📚 Book
⚔️ Threats White attacks Black Black attacks White Defended Vulnerable Threat Black reach White reach
♟ Make a move or press Play
idle
Stockfish strength