Tic-tac-toe

Series. A game can be one game or a best of 3, 5 or 7: a win is a point, a draw half each, and the first past half wins the match. Who moves first swaps every game, against KBot too.

Start between games. After each game both players press Start for the next. You have the clock’s base time to do it (3 minutes on 3 + 2, an hour on an hour a move). Not pressing in time loses that game. If nobody presses Start, the match ends there: the leader wins it, and a level score is a draw.

Clocks. Either a time per move (from a minute to a day), or a time for the whole game, with or without an increment added after each move (“3 + 2” is three minutes each plus two seconds a move). Run out and you lose. The default is an hour a move.

Draws and resigning. You can offer a draw or resign at any time; in a series you choose whether it is for this game or the whole match, and the other player sees which. At a table of three or more you leave instead: you’re placed last, and the rest play on.

KBot. In your own chat you can play KBot, on Normal (it plays properly) or Easy (it makes mistakes). Games against KBot don’t count towards your stats or the leaderboards.