Play REMY

Play REMY on Lichess

You can play a game against REMY right now, on Lichess. It's there as the bot remychessengine.

Challenge REMY on Lichess

The button opens Lichess with REMY already chosen as your opponent. REMY's page on Lichess lists the games it has played.

How to challenge REMY

1. Sign in to Lichess, or make a free account. You need one to send a challenge.
2. Press Challenge REMY on Lichess. Lichess opens its challenge box with REMY filled in.
3. Leave the game type on Standard. Choose Real time, then the minutes each side gets and the seconds added after every move. Signed in, you can also choose rated or casual: a casual game doesn't change your own Lichess rating.
4. Pick your side, White, Black or random, and press the challenge button at the bottom.
5. If REMY is free, it accepts within a few seconds and the game starts. If it answers "later", or doesn't answer, it's busy with another game or its computer is off: try again in a while.

What is Lichess?

Lichess is a free chess website, run as a non-profit, with no ads. It works in any web browser and in its phone app. People play each other there at every level, from beginners to grandmasters.

What is a Lichess bot?

On Lichess, a bot is an account played by a computer program instead of a person. Bots have the word BOT next to their name, so you always know. They don't join Lichess's quick pairing: you play one by sending it a challenge, and it decides whether to accept.

What it means to play REMY there

When you challenge remychessengine, you are playing REMY 9, the current version of REMY. It has been the bot's engine since 9 November 2026 at 07:13 UTC. This is its clean week: a first week of games watched for faults. REMY 9 is the release candidate. It runs on a home computer. REMY plays every move itself: no opening book, no looking moves up online, and no endgame tables. It plays one game at a time, and people come first: other bots get only a few games a day.

Your games are never used to train REMY. It learns only from games against itself.

Lichess gives REMY a rating of its own there, from its games on Lichess, mostly against other bots. That's a different scale from the CCRL list this site uses, so this site doesn't show it.