Sigma

西格玛是一种上瘾的益智游戏，这是简单易学但难以掌握。

In Sigma you are given a a 4x4 block with numbers 2,4,6 filled randomly.

Connect adjacent equal number tiles by selecting them up, down, left, right or diagonally to add numbers in the path traversed.

Connect at least 3 similar number tiles to sum the path.

To cancel selection, just swipe out of the grid.

Sigma provides an "Undo" option.

There are 3 gameplay modes.

1) Classic

In this mode, sum appears in the first tile of the path user started with and the remaining tiles in the path will

be allocated numbers 2,4,6 randomly.

This is the most suitable mode of all the modes of Sigma.

2) Time Attack

This is similar to Classic mode but with a time constraint of two minutes.

Sigma's quickest game mode.

3) Arcade

In this mode, sum may appear anywhere in the path and the remaining tiles will be allocated numbers 2,4,6 randomly.

Sigma's arcady game Mode.

The most exciting part of the game is the integration of leaderboards. Compete with the world.

Enjoy Sigma.