Optional — it lets you pick up the same games on another device. First time? Pick any PIN — that becomes yours. Your number is stored as a one-way hash, never in the clear. Only the last four digits are kept, so we can show you which number you signed in with.
Your opponent needs to know who they are playing. Alerts are how the game tells you when it is your move — worth turning on, but you can play without them.
Your games live on this device. To carry them to a phone or another browser, get a code here and enter it there.
Already have a code from your other device?
Standard chess plus a deck of 50 Tricks that bend the rules — but nearly every Trick is restricted, so the tricks rarely land the finishing blow. You can have as many games going at once as you like.
Send them this invite, or read them the code. You can play your opening move on the board below — they will see it when they join.