SIGAe

You can win if the values of the squares are equal horizontally, vertically or diagonally

You can play in a horizontal or vertical position of the screen

You and your friend can play on the same device

In case of victory or draw, click on the replay icon at the bottom of the screen until a new game starts

You can press the replay icon at the bottom of the screen until a new game starts at any time while playing

Or.....

You can play online for up to levels

Escalate levels from very easy to very difficult

The level increases with each game you win

The level decreases with each game you lose

Every time you open the program you will find your level as you left it the last game

In case of a win or a draw, wait until a new game starts