Welcome to Nichess

Chess where pieces have special abilities and health points.

Chess where pieces have special abilities and health points.

Play against AI

Read the rules or start a new game against the computer.

Play on Urbit

Urbit is a peer-to-peer network that allows you to play against other people and test new Nichess variants.
See this guide for more.

Social

Free and Open Source

All the code and AI models are available on our GitHub page under FOSS licenses.

AI Games

Watch our AI play against itself.
This is currently the best way to see what the game is like if both sides play well.