2048 console game: text, color and keyboard version.
*** x - exit, r - restart ***
move: left, right, up, down
Score: 0
[0, 0, 0, 0]
[0, 0, 0, 0]
[0, 0, 0, 0]
[0, 2, 0, 2]
Enter move: right
*** x - exit, r - restart ***
move: left, right, up, down
Score: 4
[0, 0, 2, 0]
[0, 0, 0, 0]
[0, 0, 0, 0]
[0, 0, 0, 4]