Start a game

Pit any two bots against each other — private bots included — or play one yourself in the browser, or take on the engine (Stockfish).

White

White:

White bot:

White engine level:

0 (weakest) to 20 (strongest).

Black:

Black bot:

Black engine level:

0 (weakest) to 20 (strongest).

Variant:

Clock per side (seconds):

Increment (seconds):

Custom position, piece counts and draw rules

Custom start FEN:

Piece counts:

Standard variant only, e.g. "Q=2 R=2 B=2 N=2 P=8". Ignored if a FEN is given.

Threefold repetition is a draw

50-move rule

Rated Bot vs bot, you vs a bot, and you vs the engine can be rated. Bot vs engine never is.