grd=: g2048Con ''

Score is 0
0 0 0 2
0 2 0 0
0 0 0 0
0 0 0 0
   right__grd ''
Score is 0
0 0 0 2
0 0 0 2
0 0 0 0
0 0 0 2
   down__grd ''
Score is 4
0 0 0 0
0 0 0 0
0 0 4 4
0 0 0 2
...