Editing Double Perimeter Defense Formation(4x4) (section)

=== 2x4 DPDF: ===

2x4 DPDF normally looks like:<pre>128 64 32 2
16  8  4  2 | DLRRULL (side note - 2x4 DPDF isn't optimal until 256+128)</pre>The main line for merging into final 64 for 512 is:<pre>256 128 32 2
16  8   4  2 | D; then LLRU If only 2's. If 4 spawn after D go LRRU then L until either:
8 2 2 x | In the bottom 1x4 or
8 2 x 2 | If 8 2 2 then go D and the normal DPDF line. If 8 2 x 2 then you are most likely going to lose unless you win many 50/50's and a 4 gamble. Both of these lines assume no 2 spawns. If you get any 4's you will have to take many 50/50's and 2 gambles UNLESS you get in the 1x4 space:
4 4 4 x | Then go L and get:

8 4 4 x | If that happens you can go D and play the normal DPDF line.</pre>Main DPDF line:
 256 128 16 8
 4   2   2  x | RRUL if 4 spawn after first R go RU and if:
 2 2 4 x in the 1x4 space play L and continue and go U after a 2 spawns in:
 x x x 2 then continue main line. From here you would play mainly D and L moves.
 L until you cant then D unless something like:
 x x x 2
 8 4 4 2  | here you would go D and if 4 spawn go D again. After if you get the 2 spawn LD if 4 go L if 2 go D if 4 go L.
 More to be done.