Ultimate Tic Tac Toe Game

Ultimate Tic Tac Toe, made by Code This Lab, takes the familiar game and gives it two bigger boards to play on. Start with the classic 3x3 grid, or step up to a 5x5 or 7x7 board where a single row down the middle isn't enough to win anymore — you need four marks in a row instead of three, so the extra space actually changes how you have to think.

Play a quick round solo against the computer, or pass the device to a friend for local two-player matches. The bigger boards turn a game people usually finish in seconds into something closer to a short strategy match, since blocking an opponent's line takes real planning once there's more room to work with.

Controls

• Click a cell with the mouse, or tap it on a touchscreen, to place your mark

Tips

• On the 3x3 board, taking the center first still gives you the most winning lines to work with.
• On 5x5 and 7x7, remember the win condition is four in a row, not three — don't waste a move blocking a line that isn't actually a threat yet.
• Watch for diagonal lines on the bigger boards; they're easy to miss when you're focused on rows and columns near your own marks.

It's a good fit if you like Tic Tac Toe but want a version with more room to think a few moves ahead, either alone against the CPU or against someone next to you.