OTTF (One Two Three Four) – a logic game where it is necessary to place the chips, as shown in the game template. The game has two game modes: the play for time and a free regime. In a game 40 levels. Pleasant music. Play OTTF online at Shtoss.com! OTTF is a very quality and popular flash game. Thousands players has played OTTF and love it, hope you will enjoy it too. Shtoss.com hosts more best online games and all free for you, if you like to play funny and cool games like OTTF, Shtoss.com is your best choice!