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

== Modern DPDF (Eners Merge and Super Pepsi)==
The Eners Merge, named after [[eners49|eners49]], is the optimal setup for 16k DPDF endgames. When done correctly, it leads to a formation that has been (somewhat jokingly) named "Super Pepsi", the optimal setup for 32k DPDF endgames.

There are many initial setups for the Eners merge, but the most common way to do it begins with this position:
<pre>
4   2   2   _
256 32  16  8
2k  1k  512 8
16k 8k  4k  2
</pre>
Assuming all 2 spawns, the player should now go left thrice, resulting in one of the following formations:
<pre>
8   4   2   _
256 32  16  8
2k  1k  512 8
16k 8k  4k  2  |  DUL

8   4   _   2
256 32  16  8
2k  1k  512 8
16k 8k  4k  2  |  LUL (side note - tables actually want LL immediately here, there are about 40 different lines though and this move offers only about 0.07% advantage so it isn't strongly recommended for humans)
</pre>
This results in the following formation, from which the player should go up four times:
<pre>
8   4   4   _
256 32  32  2
2k  1k  512 2
16k 8k  4k  2
</pre>
This will result in one of two formations:
<pre>8   4   4   8
256 32  32  4
2k  1k  512 2
16k 8k  4k  _  |  LDUDULDDUDULDDD

8   4   4   8
256 32  32  4
2k  1k  512 _
16k 8k  4k  2  |  ULDULDUDDDULDDD</pre>
This results in either of the following:
<pre>
16  8   8   2
256 64  16  _
2k  1k  512 2
16k 8k  4k  8  |  UDRLRDRUULDL

16  8   8   _
256 64  16  2
2k  1k  512 2
16k 8k  4k  8  |  RL; then LRUDRUULDL if D4 spawn, DURDRUULDL if C4 spawn
</pre>
Finally, the result is one of the two forms of the Super Pepsi formation:
<pre>
2   4   2   _
256 128 4   2
2k  1k  512 4
16k 8k  4k  2  |  R

2   4   2   2
256 128 4   _
2k  1k  512 4
16k 8k  4k  2  |  U
</pre>