Sokoban Level 1o

Sokoban Level 1o is a new possible map for Sokoban that appears in GruntHack and SlashTHEM. It has 11 boulders and 10 pits, leaving one spare boulder.

      ------------
     --..|.....|<| 0 boulder
     |..0|00.0.|^| ^ pit
     |-......0-|^| > starting position/downstairs
     |...|.0..||^| < upstairs
     |>0.|-.---|^| ? scroll of earth
     --.--|0|  |^|
    ---.--|.|  |^|
    |....--.----^|
    |.0..0..^^^..|
    |.0..------??|
    --...|    ----
     -----        

Strategy

The following solution solves the level without making any boulders 'stick', but may not be the fastest solution possible; improvements on solving and move organization are welcome.

All boulders are replaced by letters so they can be referred to. Moving the boulders is shortened to r for right, l for left, u for up, d for down. An asterisk is used to denote the last move filled a pit (and thus removed the boulder from the game). So "N ddrr*" means move boulder N two times down and two times to the right into a pit.

First set of moves:

  ------------ 
 --..|.....|<| G dddd d
 |..A|BC.D.|^| J rrr*
 |-......E-|^| I rrrr rrr*
 |...|.F..||^| 
 |@G.|-.---|^| 
 --.--|H|  |^|
---.--|.|  |^|
|....--.----^|
|.I..J..^^^..|
|.K..------..|
--...|    ----
 -----        

Second set of moves:

  ------------ 
 --..|.....|<| G urrr rrrr*
 |..A|BC.D.|^| K urrr rrrr rrru*
 |-......E-|^| 
 |...|.F..||^| 
 |>..|-.---|^| 
 --.--|H|  |^|
---.--|.|  |^|
|....--.----^|
|.......@.^..|
|.KG.------..|
--...|    ----
 -----        

Along the way, be sure pick up the two scrolls of earth as soon as possible to ensure that no monsters get a hold of them; remember to verify their beatitude before reading them in Sokoban, and only do so if you have misplaced or broken some other boulders.

Third set of moves:

  ------------ 
 --..|.....|<| A dd
 |..A|BC.D.|^| C d
 |-......E-|^| D ll
 |...|.F..||^| E u
 |>..|-.---|^| C llll
 --.--|H|  |^|
---.--|.|  |^|
|....--.----.|
|...........@|
|....------..|
--...|    ----
 -----        

Fourth set of moves:

  ------------ 
 --..|.....|<| F r
 |...|BD.E.|^| C dddd ddrr rrrr rrru u*
 |-C@.....-|^| H ddd_ ___r rrrr uuu*
 |..A|.F..||^| 
 |>..|-.---|^| 
 --.--|H|  |^|
---.--|.|  |^|
|....--.----.|
|............|
|....------..|
--...|    ----
 -----        

Fifth set of moves:

  ------------ 
 --..|.....|<| D dddd dddr rrrr uuuu*
 |...|BD.E.|^| F lddd ddrr rrru uuuu*
 |-.......-|^| E lldd dddd drrr rruu uuuu*
 |..A|..F.||^| 
 |>..|-.---|^| 
 --.--|.|  |.|
---.--|.|  |@|
|....--.----.|
|............|
|....------..|
--...|    ----
 -----        

Last set of moves:

  ------------ 
 --..|.....|<| B dlll dddd ddrr rrrr rrru uuuu uu*
 |...|B....|^| 
 |-.......-|.| 
 |..A|....||@| 
 |>..|-.---|.| 
 --.--|.|  |.|
---.--|.|  |.|
|....--.----.|
|............|
|....------..|
--...|    ----
 -----