A flavor of the 2048 game
https://en.wikipedia.org/wiki/2048_(video_game)
This game allows you to specify the #blocks (size) of the grid in the URL. y default, you will be provided a 4x4 grid, but you may override by appending:
?size=<value>
Eg:
-
For 3x3, append:
?size=3
-
For 5x5, append:
?size=5