Dooz or Tic-Tac-Tao is a simple pen-and-paper game. I created this implementation using Kotlin and Jetpack Compose for Android devices.
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SDK21+ or Android 5.0+
Just play it!
- Jetpack Compose
- Material3 and Dynamic Color
- Variable game board grid size from three-by-three to seven-by-seven (Larger than seven-by-seven is simply ridiculous and unplayable in mobile phones)
- Variable game ai difficulty (easy, medium, hard)
The Simple game is the most simple variation of Tic-tac-tao with a three-by-three grid with two players. The player who succeeds in placing three of their marks in horizontal, vertical, or diagonal is the winner.
Currently, in hard mode, AI uses a strategy rather than an AI search algorithm like MinMax. This strategy consists of these steps: Win, Block, Fork, Block Fork, Center Play, Corner Play, and Side Play.
Strategy's source: Flexible Strategy Use in Young Children's Tic-Tac-Toe by Kevin Crowley, Robert S. Siegler
More info on the strategy here
In Easy difficulty, AI plays a random empty cell in the grid. In Medium difficulty, AI chooses between Easy difficulty and Hard difficulty for each move based on a 50/50 chance.
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