Tic Tac Toe (Proxy)Play Tic Tac Toe with a twist: pick a 3x3, 5x5, or 7x7 board, face the AI or a friend, and race to line up three or four marks in a row.
Tic Tac Toe (Proxy)
Tic Tac Toe needs no introduction, but this version adds a wrinkle the paper-and-pencil game never had: you choose the board size before you play. Stick with the classic 3×3 grid for a quick, familiar duel, or bump it up to 5×5 or 7×7, where three in a row is no longer enough to win and the game opens up into a longer, more tactical fight for control of the board.
Play alone against the computer or pass the device to a friend for a local two-player match. On the bigger boards you need four marks in a row instead of three, which changes how you should think about the opening — blocking a single line is no longer enough, since a sharp opponent can build two winning threats at once.
Controls
Click or tap the square where you want to place your mark. That’s the entire control scheme — no keyboard needed.
Tips that actually help
- On 3×3, take the center square first if it’s open — it’s part of the most possible winning lines, and controlling it against a computer opponent forces it into a defensive game.
- On 5×5 and 7×7, don’t fixate on a single line early. Play moves that build two potential four-in-a-row threats at once, so your opponent can only block one.
- Against the AI, watch for moves that look passive but actually set up a fork — a spot that completes two different lines. The computer will usually take a fork if you leave one open.