Selfplay Chess
Play chess against a small engine that taught itself by playing itself. Pick one of four levels, from random moves to its strongest.
Promote to
Click or tap one of your pieces, then a highlighted square. Arrow keys move around the board and Enter picks a square. The engine searches in a background thread, so the page stays responsive.
Level
You play
After each move the engine shows its evaluation (in pawns, from White's view), search depth, node count and principal variation.
Moves
How it's built, results and limits: How it works →