Four-in-a-Row:A Classic Game that Keeps You Young(四目並べ:脳トレ パズル)

The rules to this classic game are easy—just remember that you need to work from the bottom up. The arrows show you where you can place your chip. Simply get four in a row, either horizontally, vertically, or diagonally, and you win! You can play against the computer, and choose whether you want to go first or second. You can also play with a friend. Note that the free version is you against the computer only.
Click here for the paid version!
Click here for the free version!