Noughts Grid
Noughts and crosses where the keypad is the board - plus a 5x5 four-in-a-row variant.
Board Emulator verified v1.0.0 18.1 KB
The JAR and JAD are the Original Java ME Version for phones and emulators. How to install.
About
On the classic board, keys 1-9 map one-to-one onto the squares, so playing feels like pressing the grid itself. The Perfect CPU uses full minimax and never loses; Easy makes human mistakes. The 5x5 board needs four in a row and has a heuristic CPU, and both boards support two players on one phone.
Objective: Get three (or four on 5x5) of your marks in a row.
Modes: 3x3 vs CPU Easy, 3x3 vs CPU Perfect, 3x3 2 Players, 5x5 vs CPU, 5x5 2 Players
board game tic-tac-toe versus cpu two player
Screenshots captured from the real JAR at 176x208 on the project's reference runtime; the third image is rendered by MicroEmulator 2.0.4.
Controls
| Key | Action |
|---|---|
| 1-9 | Play that square (3x3) |
| 2/4/6/8 | Move cursor |
| 5 | Play at cursor |
| * | Pause menu |
In every game: 5 selects in menus, * pauses, and on the title screen # opens help and 0 toggles sound. The joystick and 2/4/6/8 are interchangeable.
Verification
| Level | Status | Details |
|---|---|---|
| Build verified | Yes | Compiled against CLDC 1.0 / MIDP 2.0; JAR + JAD generated |
| Reference runtime | Yes | Passed at 128x128, 128x160, 176x208, 176x220, 240x320 |
| Emulator verified | Yes | Automated smoke test on MicroEmulator 2.0.4 (176x220) |
| Real device verified | No | Not yet tested on real hardware |
Tried it on a real phone? Send a device report.
Technical details
| MIDlet | noughtsgrid.NoughtsGridMIDlet |
|---|---|
| Platform | Java ME, CLDC 1.0, MIDP 2.0 |
| JAR size | 18.1 KB |
| Screens | 128x128, 128x160, 176x208, 176x220, 240x320 |
| Storage | RMS record store gk (settings, best score) |