Picking out the Seeds

This is one of the new possible maps for Sokoban Level 1 in Nethack Fourk and Level 4 in Hack'EM. It has 14 boulders and 12 holes, leaving 2 spare boulders.

   ---------    0 boulder
 ---..|....---  ^ hole
 |.0..|..0.0>|  > starting position/downstairs
--...00...0.--- < upstairs
|.....|..0..|<| ? scroll of earth
|.0.0....0---^|
|------^..|.^^|
|...0.0^---.^.|
--.....^^^^^^--
 |.0...0---??|
 ---......|---
   ---------

Strategy

   ---------    A l
 ---..|....---  D lldd
 |.H..|..B.A>|  C llld ddd
--...GF...C.--- N u
|.....|..D..|<| L ruud ddr
|.J.I....E---^| M rrrr urr
|------^..|.^^| K rrru uddd rrr
|...K.L^---.^.|
--.....^^^^^^--
 |.M...N---??|
 ---......|---
   ---------

   ---------    A ddll lddd drrr r
 ---..|....---  B ddll dddd rrrr r
 |.H..|..BA.>|  E ulld dddr rrrr u
--...GF.....--- I rrrr lddd rrrr ruu
|.....|.....|<| J rrrr rrld ddrr rrru ur
|.J.I....E---^| G ddrr rldd drrr rruu ru
|------...|.^^|
|.......---.^.|
--.........^^--
 |......---??|
 ---......|---
   ---------