Sokoban Level 3a
This version of the third level of sokoban has 16 boulders and 11 holes.
0 boulder ^ hole @ starting position/downstairs < upstairs
-------- ---.|....| |...0....|---------- |.-.00-00|.|.......| |.00-......|.......| |.-..0.|...|.......| |....-0--0-|...<...| |..00..0...|.......| |.--...|...|.......| |....-0|---|.......| ---..0.-----------+| |..0@^^^^^^^^^^^.| ------------------
Strategy
The following solution solves the level without putting any boulders in an immobile position. Faster solutions which do not necessarily leave every boulder free might exist. You can watch a video of this solution.
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 Nddrr* means move boulder N two times down and two times to the right into a pit.
First clear up the lower part of the room. The opening move is the only one possible. Make sure you move the O boulder out of the way when finishing the L boulder:
-------- ---.|....| |...A....|---------- O ll |.-.BC-DE|.|.......| P rr* |.FG-......|.......| N ddrr* |.-..H.|...|.......| L ddd |....-I--J-|...<...| O u |..KL..M...|.......| L rrdr rr* |.--...|...|.......| O rddr rrrr r* |....-N|---|.......| K rddd drrr rrrr* ---..O.-----------+| |..P@^^^^^^^^^^^.| ------------------
Clear the upper left corner, boulders G and F. Now enter the small room in the middle and finish boulder M. Then enter the room just above J and finish I and H:
-------- ---.|....| |...A....|---------- G dddr dddd rrrr rrrr* |.-.BC-DE|.|.......| F rddd rddd drrr rrrr rr* |.FG-......|.......| M rrll llld dddr rrrr rrrr r* |.-..H.|...|.......| J uu |....-I--J-|...<...| I dddd drrr rrrr rr* |......M...|.......| H rddd dddr rrrr rrrr r* |.--...|...|.......| |....-.|---|.......| ---....-----------+| |...@.....^^^^^^.| ------------------
Enter the top room through A and push C out:
-------- ---.|....| |...A....|---------- A rr |.-.BC-DE|.|.......| C ddrd dddd drrr rrrr rrrr* |...-....J.|.......| |.-....|...|.......| |....-.--.-|...<...| |..........|.......| |.--...|...|.......| |....-.|---|.......| ---....-----------+| |...@..........^.| ------------------
The level is now finished. All boulders can still be moved around freely and should be checked for wands or rings.
-------- ---.|....| |.....A..|---------- |.-.B.-DE|.|.......| |...-....J.|.......| |.-....|...|.......| |....-.--.-|...<...| |..........|.......| |.--...|...|.......| |....-.|---|.......| ---....-----------+| |...@............| ------------------
Next level
After this level, you will face either of the following levels:
Sokoban Level 4a (with a bag of holding)
-------------------------- |@......^^^^^^^^^^^^^^^^.| |.......----------------.| -------.------ |.| |...........| |.| |.0.0.0.0.0.| |.| --------.----| |.| |...0.0..0.0.| |.| |...0........| |.| -----.-------- ------|.| |..0.0.0...| --|.....|.| |.....0....| |.+.....|.| |.0.0...0.-- |-|.....|.| -------.---- |.+.....+.| |..0.....| |-|.....|-- |........| |.+.....| |...------ --|.....| ----- ------- |
Sokoban Level 4b (with an amulet of reflection)
------------------------ |..^^^^^^^^^^^^^^^^^^..| |..-------------------.| ----.| ----- |.| |..|0-- --...| |.| |.....|--|.0..| |.| |.00..|..|..0.| |.| --..00|...00.-- |.| |0..0...|0..| ------|.| |.00.|..|..0| --|.....|.| |.0.0---|.0.| |.+.....|.| |.......|..-- |-|.....|.| ----.0..|.-- |.+.....+.| ---.--.| |-|.....|-- |.0...| |.+.....| |@.|..| --|.....| ------- ------- |