# Sokoban Level 3a
This version of the third level of Sokoban has 16 boulders and 11 holes.

0 boulder
^ hole
@ starting position/downstairs
&lt; upstairs

-------- 
---.|....| 
|...0....|---------- 
|.-.00-00|.|.......| 
|.00-......|.......| 
|.-..0.|...|.......| 
|....-0--0-|...&lt;...| 
|..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 TTYREC video of this solution or a YouTube video.
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 hole (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 hole.
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-|...&lt;...| 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-|...&lt;...| 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.|.......|  
|.-....|...|.......|  
|....-.--.-|...&lt;...|  
|..........|.......|  
|.--...|...|.......| 
|....-.|---|.......| 
---....-----------+| 
  |...@..........^.| 
  ------------------

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.|.......|
|.-....|...|.......|
|....-.--.-|...&lt;...|
|..........|.......|
|.--...|...|.......|
|....-.|---|.......|
---....-----------+|
  |...@............|
  ------------------

Next level
After this level, you will face either of the following levels. In NetHack 3.4.3 and variants based on it, level 4a has a bag of holding and level 4b has an amulet of reflection. In NetHack 3.6.0 and variants based on it, either level may have either prize with equal probability:

Sokoban Level 4a
--------------------------
|@......^^^^^^^^^^^^^^^^.|
|.......----------------.|
-------.------         |.|
 |...........|         |.|
 |.0.0.0.0.0.|         |.|
--------.----|         |.|
|...0.0..0.0.|         |.|
|...0........|         |.|
-----.--------   ------|.|
 |..0.0.0...|  --|.....|.|
 |.....0....|  |.+.....|.|
 |.0.0...0.--  |-|.....|.|
-------.----   |.+.....+.|
|..0.....|     |-|.....|--
|........|     |.+.....|
|...------     --|.....|
-----            -------

Sokoban Level 4b
  ------------------------
  |..^^^^^^^^^^^^^^^^^^..|
  |..-------------------.|
----.|    -----        |.|
|..|0--  --...|        |.|
|.....|--|.0..|        |.|
|.00..|..|..0.|        |.|
--..00|...00.--        |.|
 |0..0...|0..|   ------|.|
 |.00.|..|..0| --|.....|.|
 |.0.0---|.0.| |.+.....|.|
 |.......|..-- |-|.....|.|
 ----.0..|.--  |.+.....+.|
    ---.--.|   |-|.....|--
     |.0...|   |.+.....|
     |@.|..|   --|.....|
     -------     -------

This page may need to be updated for the current version of NetHack.
It may contain text specific to NetHack 3.6.0. Information on this page may be out of date.
Editors: After reviewing this page and making necessary edits, please change the {{nethack-360}} tag to the current version's tag or {{noversion}} as appropriate.