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"Reassembly Square" by radiant (mod Dave)

added 06 Dec 2010 03:53
Shortest Solution
Length201 moves
On01 Sep 2019 02:31

Comments (turn spoilers off)
20377 Reassembly Square noname (559) Sun 01 Sep 2019 02:31 SPOILER
  Added speedrun: 201 moves (old: 216).
In the past, I thought that fixing the first bots before randomly placing the rest, as in what I did for Assembly Square, would not work because of the placement of Bot 15. Looking at Dave's original solution again and thinking about it, however, leads me to think that it might actually be okay to fix the first seven bots. I also limited the bots to the first five rows in the 6x6 square. Otherwise, I followed the procedure described in my recent comment to Assembly Square, and this speedrun is the result.
20370 Reassembly Square noname (559) Fri 30 Aug 2019 01:20 SPOILER
  Added speedrun: 216 moves (old: 223).
Using the end position my computer generated when this level fisrt came up with my hand-solved solution for the first part as input to vicinity search gives an even faster solution.
20367 Reassembly Square noname (559) Wed 28 Aug 2019 07:39 SPOILER
  Added speedrun: 223 moves (old: 231).
It turns out that using Dave's original solution as input to my vicinity search variant gives faster solution.
20366 Reassembly Square noname (559) Wed 28 Aug 2019 04:22 SPOILER
  Added speedrun: 231 moves (old: 239).
Found by using a variant of vicinity search to shorten a hard-coded silly solution to the position given by Dave's original solution. The act of randomly generate positions failed to find good positions that seem to have short sokoban solution.

For details of my variant of vicinity search, see my comment 20365 for the level #2880 "Assembly Square".
16674 Reassembly Square Dave (2400) Sun 24 Mar 2013 03:09  
  Moved to graveyard:

Deleted as pointless. Meant to do this a long time ago.
15003 Reassembly Square Dave (2400) Wed 15 Dec 2010 03:32 SPOILER
  Unless I'm much mistaken, somebody just has given this a difficulty rating of 6. Now, obviously it is unfair to adjust the rating of a level if you have had to solve it by computer (at least that's my personal take on it), so since the only two people I'm aware of who have actually solved both these levels without computer assistance are radiant and myself I would love to know who solved this that easily and why haven't they solved the original?
15002 Reassembly Square Dave (2400) Wed 15 Dec 2010 01:24 SPOILER
  Now done by hand using the same method as before. In the meantime, radiant, your juggling in the editor idea cracked the Assembly Line levels in no time.
14942 Reassembly Square radiant (1469) Tue 07 Dec 2010 04:42 SPOILER
  I just move the bots around in the editor when I'm looking for a solution to levels like these.
14941 Reassembly Square Dave (2400) Mon 06 Dec 2010 20:52 SPOILER
  I found the bot manoeuvring frustrating on the original level so built a 'less restrictive' test level to figure it out. The speed-run on '14' and the original solution here (both probably far from optimal) are computer generated and based on noname's solution, I haven't done this one by hand yet.
14939 Reassembly Square radiant (1469) Mon 06 Dec 2010 04:27  
  Having that 15 start where it is really makes moving them around awkward (but then again, so does the original 7-wide layout over a 6x6 box).

The layout from my fastest solution has a spot where 15 can go without a hitch, so there's that.
14938 Reassembly Square Dave (2400) Mon 06 Dec 2010 03:53  
  'Reassembly Square' uploaded by Dave:
The 15th bot was feeling a bit left out.