Play chess against Stockfish-powered bots at any strength, from beginner-friendly opponents to full engine power, right in your browser.
Practice games are free with no account needed, and you can send any finished game straight into the game analyzer for a full move-by-move review.
Bots are ideal for deliberate practice in a way rated games never are: rehearse a new opening without risking rating points, replay the same structure until the plans feel natural, or practice converting winning positions against an opponent that never resigns early.
Because the bot and the analyzer share the same engine, the loop is tight — play a practice game, review it immediately, queue your mistakes in the trainer, and play again. Every game becomes training data instead of just a result.