Is 4 in a row too easy? Try playing black or invisible 4 in a row. The pieces will turn black or invisible after you place them, so you better start keeping track of the board! These new 4 in a row variations are bound to make the game more interesting.Compete with your friends too see who is the best at memory and tactics, or you can challenge the AI on three difficulties.4 in a Row Variations is for all ages! These new modes of game play are an exciting new twist to the original 4 in a row, an
d you cannot find them anywhere else!
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