The colour game: a ball from 0 to 9 is drawn, and every number has a colour. 1, 3, 7 and 9 are green, 2, 4, 6 and 8 are red, 5 is green and violet, 0 is red and violet. Bet on a colour, on a number, or on big (5 to 9) or small (0 to 4), and put chips on as many as you like for one draw.

Pick a chip under the board and tap the cells to place it; press and hold (or right-click) to take one off, Ctrl+Z to undo. A colour pays twice your bet (one and a half on its violet number), violet four and a half times, a number nine times, big or small twice. As in the colour-prediction apps, a 2% fee comes off every bet first. Auto repeats your bets draw after draw.

Play live in 30 s periods, as in the apps, with everyone in the room: each period counts down, you see the room's chips on the board, betting closes for its last 5 seconds, and one ball is drawn for everyone at 0. Every period has its number. Or switch to Instant for a draw of your own the moment you bet.

A live period's number comes from a house seed whose SHA-256 hash is shown while bets are open and revealed with the draw; an instant draw from your own provably fair seed pair. Check any draw on the Provably fair page.