The game consists of a 4-by-4 table (16 slots):
| 1 | 2 | 3 | 4 |
|---|---|---|---|
| 5 | 6 | 7 | 8 |
| 9 | 10 | 11 | 12 |
| 13 | 14 | 15 | 16 |
- Each player (X or O) alternately selects one of the available slots by referring to its number.
- Player that manages to score any four slots along the vertical, horizontal or diagonal direction wins the game.
- After concluding, replay the game by providing 'Y' or 'y' to the prompt, to quit press any other key.
C++ source code and an executable compiled on Visual Studio 2013 are provided.