Thinkabara

⭕ Tic-Tac-Toe for two

Google Classroom

Tic-Tac-Toe full screen with big squares for small fingers: two players on one phone, or play the computer, from an easy level to an unbeatable one. Free, no sign-up.

  • Ages undefined
  • Phone and computer
  • Free, no sign-up

How to play

  1. Choose a mode: 👥 two players on one screen, or 🤖 against the computer, 🐣 easy or 🧠 unbeatable.
  2. X (✕) always starts. On your turn, tap an empty square to place your mark.
  3. The first to get three marks in a row, across, down or diagonally, wins.
  4. All squares full and no line? It is a draw.
  5. In the next game you swap: whoever was O now starts as X. The score is shown at the top.

Tips from the champions

  • Starting? The center square or a corner are the strongest openings.
  • Before every move ask: does my opponent have two in a row? If so, block.
  • The champions' trick: one move that creates two threats at once (a "fork").

What does it train?

  • Logical thinking and planning
  • Spotting rows, columns and diagonals
  • Waiting for your turn and losing gracefully

Questions and answers

Can I beat the computer on the "unbeatable" level?

No. On that level the computer checks every possible game and always plays a perfect move. The best you can get is a draw, and that is already an achievement! On the easy level the computer makes mistakes, so you can definitely win.

Why does Tic-Tac-Toe always end in a draw?

When neither player ever makes a mistake, there is no way to get three in a row, so the game is a draw. As soon as someone misses a block, the opponent can win.

How do two people play on one phone?

Choose 👥 two players. Each player taps a square on their turn, and the top of the screen shows whose turn it is. After every game, the player who starts swaps.

From what age can children play Tic-Tac-Toe?

From about age 4. The squares are big and there is nothing to read, just three marks in a row to spot.

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