`Four in a row

"-- Best Game for Kids or family, No In App Purchase---

Easy to learn yet hard to master
Fun to play
Well-known over the world

This Four in a row game with many features such undo feature, beautiful effects and great pics, so so ... should be the top one!

Rule:
--Two players take turns dropping colored discs from the top into a seven-column,six-row vertically-suspended grid. The pieces fall straight down, occupying the next available space within the column.
--The object of the game is to connect four of one's own discs of the same color next to each other vertically, horizontally, or diagonally before your opponent."

Xiao Yun Xu