Chess Bonzi Buddy

Play chess against a purple gorilla from 1999.

Bonzi Buddy runs on Stockfish and talks trash the whole game. Lose, then import the game and find out exactly where it went wrong.

Bonzi Buddy wants to play chess! Click OK to lose.

Scroll to watch a game

Chess Bonzi Buddy

Checkmate. Bonzi wins in four moves.

BonziBUDDY.exe

Hi there! Ready to get destroyed?

Stockfish moves, playground mouth.

Every capture, check, and checkmate gets a comment. The lines are hand-written and he never repeats one within three turns.

Import

Paste a Chess.com game link, or pull your last 50 games from Chess.com or Lichess and pick the ones worth a look.

Demo

Review

Stockfish 18 grades every move from best to blunder, scores accuracy for both sides, and estimates the rating you played at.

Practice

Every mistake becomes a puzzle. Find the move you should have played.

Everything you just saw, on a desktop of your own.