Dooz or Tic-tac-toe is a simple pen-and-paper game. I created this implementation using Kotlin and Jetpack Compose for Android Devices.
video_2024-01-05_17-55-34.mp4
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 on mobile phones)
- Variable game AI difficulty (easy, medium, hard)
The Simple game is the simplest variation of Tic-tac-toe with a three-by-three grid with two players. The player who succeeds in placing three of their marks horizontally, vertically, or diagonally 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
On Easy difficulty, the AI plays a random empty cell in the grid. In Medium difficulty, AI chooses between Easy and Hard Difficult for each move based on a 50/50 chance.
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