Autosokoban

Anonymous
Tue 8-Jul-2008 02:15

Fun!!!! yay!!

Anonymous
Tue 5-Aug-2008 17:05

Nice & funny

Anonymous
Mon 8-Sep-2008 13:28

I was looking at level 100 and above, and they were pretty mean. I hope I didn't suffocate your web server with generating them!

How fast is the solving algorithm, and how does it compare to that in the original paper which inspired you, and how quickly can it (your own algorithm) solve f.ex the typical level 100's on a given system?

lft
Linus Åkesson
Tue 16-Sep-2008 22:02

No problem. =)

The solution is a bi-product of the puzzle generation algorithm, so it would take no additional time.

Anonymous
Fri 1-May-2009 00:45

hey!

very nice job! i love this game. levels are getting more and more tricky, but you never know if the next one is easy or not. :) is there any way to install the programm on a cell phone? how complex is the algorithm to generate the levels?

lft
Linus Åkesson
Mon 4-May-2009 20:10

Thanks! The algorithm needs a lot of RAM, so it's probably not feasible for a midlet. Some day, when I get the time, I'll publish the source code and a description of the algorithm.

Anonymous
Thu 7-May-2009 19:43

Oh, super! I am very much interested in the source code. To avoid the RAM-problem, one could split the programm into a "level-creator", that calculates for example level 1 to 100 of a seed und saves it in a small file, which could be read by the second program running on the cell-phone.

Greetings, the anonymous writer =)

Anonymous
Sun 25-Jul-2010 04:01

Totally amazing. You should port it to Android/iPhone. Don't know how much memory you need, but newer devices have a lot available. Alternatively, publish the source ;)

However for the life of me I can't solve
http://www.linusakesson.net/games/autosokoban/?v=1&seed=722222541&level=6

Bug, or am I just not doing it right?

Anonymous
Sun 25-Jul-2010 13:41

Try that one, that's easy :P
http://www.linusakesson.net/games/autosokoban/?v=1&seed=1329696099&level=100

Anonymous
Sun 25-Jul-2010 14:17

I think this one is realy hard. I was to give up. But there is a soluten. First step is to push the bolder up to you up, then open the way down. Then you can do the rest.

Anonymous
Thu 19-Aug-2010 22:31

i do believe http://www.linusakesson.net/games/autosokoban/?v=1&seed=722222541&level=768 is impossible...

Anonymous
Thu 19-Aug-2010 22:37

har har just kidding its solvable just really strange :B

Anonymous
Sat 16-Oct-2010 21:39

Nice Generator :-)
I found
http://www.linusakesson.net/games/autosokoban/?v=1&seed=722222541&level=768
really easy, but for
http://www.linusakesson.net/games/autosokoban/?v=1&seed=722222541&level=6
I needed several tries.

Anonymous
Sat 18-Jun-2011 16:47

It's possible. I solved it in 17 moves. A lot of manipulation, however.

Anonymous
Mon 22-Aug-2011 16:23

http://www.linusakesson.net/games/autosokoban/?v=1&seed=1015619909&level=10

does this problem have a solution?

Anonymous
Thu 10-Nov-2011 16:40

Yes, I've found a solution in 19 turns.

Anonymous
Mon 9-Jan-2012 04:56

http://www.linusakesson.net/games/autosokoban/?v=1&seed=752450309&level=15 is killing me!

Anonymous
Fri 13-Jan-2012 03:32

Oh! I solved it!

Anonymous
Wed 29-Feb-2012 06:18

Looks like it eventually runs out of levels at level 2147483647.
(I don't know much about the language you programmed it in, but is there a reason that the level counter is signed? However, that would just delay the problem...)

Anonymous
Mon 19-Mar-2012 14:59

Running in Firefox 10.0.2 gives a very unproportional playing field.

Anonymous
Thu 17-May-2012 22:01

Easy peasy lemon squeezy

--
Xyz_39808

Anonymous
Wed 23-May-2012 15:16

http://www.linusakesson.net/games/autosokoban/?v=1&seed=1481526154&level=22

Anonymous
Thu 12-Jul-2012 13:28

This one is nice. After thinking it was quite impossible, it then took me nearly an hour to solve :-D

http://www.linusakesson.net/games/autosokoban/?v=1&seed=722222541&level=1768

Anonymous
Mon 13-Aug-2012 21:04

These algorithms are not perfect of course, and occasionally they generate these super-simple level 1000-puzzles:
http://www.linusakesson.net/games/autosokoban/?v=1&seed=810975398&level=1000

Anonymous
Fri 31-Aug-2012 01:01

http://www.linusakesson.net/games/autosokoban/?v=1&seed=1252821180&level=9

lft
Linus Åkesson
Fri 31-Aug-2012 19:37

Good find! The best levels are counter-intuitive like that.

Anonymous
Fri 7-Dec-2012 00:00

Very interesting stuff.

I have tried many levels here and all of the levels mentioned above by others, they all seem a bit on the easy side.

I wish it can generate really difficult levels.
I do mean, super difficult levels.

Anonymous
Mon 16-Sep-2013 18:32

level 13, 770569946 impossible?

Anonymous
Fri 27-Sep-2013 02:12

I've done it in about a minute. It's not impossible. Start by pushing higher the one that's above you at the start position, and then one point higher the one below you.

I'm interested in the generation algorithm too. :)

Anonymous
Tue 5-Nov-2013 02:19

It is possible and is in fact pretty easy.

Here's the LURD solution:
LLLulDulldRddllluluRRRurDlllddrrdrrruLdllulluurrurrrdLDDrdLuLLLrrruuulldRDrdLurUruL

Anonymous
Sat 30-Nov-2013 04:38

Would it be ok if I took two or three levels generated by this program and uploaded them to a certain freeware game similar to Chip's Challenge? You and your wonderful sokoban generator would recieve the credit for creating the levels, and additionally I would provide a link to the generator here so others could enjoy it. (If it is not ok, then I will not upload any levels from here.)

lft
Linus Åkesson
Sat 30-Nov-2013 16:06

Sure, go ahead!

Anonymous
Sat 30-Nov-2013 23:49

Thanks! The game which I am uploading them to can be found by searching 'escape spacebar' (not posting a link so as to avoid direct advertisement.)

The bug where the tiles end up twice as tall as they are wide on Firefox 10 is apparent for me as well. I'm not sure why it appears like that, but the game is still playable.

Anonymous
Wed 18-Jun-2014 10:02

I thought this one was tough, but it might just be that my mind is tired right now...
http://www.linusakesson.net/games/autosokoban/?v=1&seed=295316096&level=8
I got stuck in one way of thinking and didn't see all the possibilities.

Anonymous
Sat 21-Jun-2014 04:23

Okay, I'm stuck on this one.
http://www.linusakesson.net/games/autosokoban/?v=1&seed=295316096&level=26
Can anyone else solve it?

Anonymous
Sat 21-Jun-2014 09:47

Here's a good one:
http://www.linusakesson.net/games/autosokoban/?v=1&seed=1181759978&level=2811y

Anonymous
Sat 5-Jul-2014 23:49

I think it's a good one, because it was actually easier than #26! :)

Anonymous
Fri 1-Aug-2014 17:57

Hey,
First of all, congratulations! You have done an amazing job! It looks fantastic!
Well, I have a project to create a random map creator for sokoban, but I'm having a lot of trouble to do it. I've already looked for the academic paper you talked about, but unfortunately I wasn't able to find it. I would appreciate a lot if you could give me a hand with it.
Thanks a lot

Anonymous
Thu 7-Aug-2014 10:50

http://www.linusakesson.net/games/autosokoban/?v=1&seed=1093093105&level=12yy
Enjoy. (It's impossible.)

Anonymous
Tue 11-Nov-2014 18:25

Not impossible. 21 moves. Nice puzzle

Anonymous
Fri 21-Nov-2014 14:00

It's some sort of overflow I'd say as 2147483647 = 0b01111111111111111111111111111111 (so one zero and 31 one's)

mporshnev
Max Porshnev
Wed 17-Dec-2014 13:46

Spoiler: 4←1↓2←1→2↓2→1↑1←1↑1←1↓1↑1←1↑2←1↓1→1←3↑5→1↓1↑1←2↓3←1↓1←2↑1↓3→1↓1←

Anonymous
Fri 19-Dec-2014 21:11

amazing

Anonymous
Sat 14-Mar-2015 01:06

Solved. 40 moves. Probably can do less. Took 30 seconds.

Anonymous
Sat 14-Mar-2015 01:47

I was all excited about solving 768 but I can't solve this one:
http://www.linusakesson.net/games/autosokoban/?v=1&seed=123456789&level=1000
Is it solvable?

mporshnev
Max Porshnev
Tue 17-Mar-2015 18:33

Of course, it is solvable. Spoiler: https://drive.google.com/file/d/0B8dVHtu9r5i-YUpQdXF1anFhZ00/view?usp=sharing , but that's definitely not the shortest way. :-)

Anonymous
Wed 8-Jul-2015 17:25

On 2009 you posted "when I got time, I'll publish the source code". I hope 6 years later you can have spare time to share you knowledge with us! :)

Anonymous
Tue 25-Aug-2015 01:12

This one seems impossible:
http://www.linusakesson.net/games/autosokoban/?v=1&seed=1278908319&level=4

lft
Linus Åkesson
Tue 8-Sep-2015 17:52

Not at all. But it's a nice find!

Anonymous
Wed 9-Sep-2015 01:16

Ah. Yes. You are right! Why didn't I see that...

Anonymous
Fri 5-Feb-2016 14:25

Addictive: yes

Anonymous
Fri 12-Feb-2016 00:32

Truly amazing :) So, any chance that you will publish the algorithm someday ?

Anonymous
Tue 22-Mar-2016 23:56

Can I use the generated levels is a app that will have extra packs that the user will buy it? The credits I will cite you page. Thanks

lft
Linus Åkesson
Wed 30-Mar-2016 00:41

Hi! I saw your mail about this; sorry for not replying sooner. Yes, you can use levels that you got from my level generator. But don't hook up the app directly to the online generator, because that would increase my bandwidth requirements. Include a credit and a link to my page somewhere.

The same permission is hereby granted to anybody else who wants to do the same.

Anonymous
Fri 6-May-2016 07:01

Yeah I am working on a similar problem and would be curious how you did this.

Anonymous
Sun 11-Sep-2016 13:10

That puzzle generator is amazing! Would be great if you could contribute generator and solver code to Simon Tatham's portable puzzle collection, so that it could be played anywhere. Actually, there is an implementation of Sokoban there in unfinished puzzles on git, but it lacks a good generation code.

Anonymous
Sat 3-Dec-2016 22:19

Very cool and addictive, would love to see the source! I may need to listen to the Zelda theme, but for the life of me, I can't figure this one out: http://www.linusakesson.net/games/autosokoban/?v=1&seed=2084139227&level=10

Linus, your site is my new homepage!

Cheers,

falk

Anonymous
Sat 3-Dec-2016 22:47

nm, got it with the help of my wife. For an engineer, I really suck at puzzles!

ADent
Mikael Johansson
Sat 22-Apr-2017 02:52

Cool stubled on this just now!

My first "app" was a J2ME-midlet originally made for the SE T610. It was Sokoban, with the feature of "in-app-purchase" ;) Beeing able to download new level-sets from my webserver that kept the levels as strings in MySQL. The midlet sent max size of it's screen to the server and only got levels that fit. It worked very well on most j2me enabled phones i tried it on, even the low end ones. It can still be downloaded:

http://adent.dyndns.org/wap/apps/Sokoban/index.wml

But the level download feature does not work right now, shall try to fix it server side some time.

When everything kind-of-like worked the project was'nt fun any more... And also, lack of freely available levels...

It would be cool to finish it up some time.

Anonymous
Mon 24-Apr-2017 21:18

I dare you, solve this one
http://www.linusakesson.net/games/autosokoban/?v=1&seed=1329696099&level=20

Anonymous
Thu 1-Jun-2017 01:34

The level is actually not as difficult as you think.
Using the upper path as a one-way sliding door makes it easy.

To make it more interesting, you can actually eliminate the upper path as a one-way sliding door by adding a wall.
Like this:

#####-----
##--###---
#@--$-####
##-##----#
-#.*.-.$-#
-##$-$-$.#
--#-.$.-##
--#######-

Still relatively easy.

Anonymous
Mon 12-Jun-2017 13:04

How is the difficulty of the levels determined?

jc99
Joe Care
Thu 15-Jun-2017 04:05

Hi, Sokoban is still sooooooo addictive ...
Now it's 2017 how about the source code now ?
Or at least tell us more about your solution.
The first part I think is a base-room that you modify with several templates.

Anonymous
Tue 25-Jul-2017 23:16

I can't seem to figure out the level

http://www.linusakesson.net/games/autosokoban/?v=1&seed=1221090344&level=18

I got it almost solved, but I can't finish it, I always get the last two crates in a position where I can only push one of them into their place

Anonymous
Tue 25-Jul-2017 23:24

Okay, just as I had posted this comment I finally solved that level (in 33 moves). It's still pretty tricky.

Anonymous
Fri 23-Feb-2018 18:27

I wish the page can also display the level in XSB format.
This way, we can play the level on our favorite Sokoban program.

Anonymous
Thu 17-May-2018 07:47

impooosibru xD http://www.linusakesson.net/games/autosokoban/?v=1&seed=1273031963&level=18

Anonymous
Mon 18-Jun-2018 09:22

It's not impossible, it's very easy.

Do: Up, Right, Up, Up, right, right, right

Do not start with this: Up, Right, Right, Right, Up.

Anonymous
Tue 19-Mar-2019 17:06

First of all, my compliments! But... http://www.linusakesson.net/games/autosokoban/?v=1&seed=1978221574&level=901
Has it got a solution? It's driving me mad!

Anonymous
Tue 26-Mar-2019 14:22

This is probably the best level on this site so far.
Nice!

DlddddrrddrrrrruuuuuuullldDuurrrdddddddl
lllluulluuuRRRddrruLUlllldddrrddrrrrruuu
uLrddddllllluulluuurrrrddrRuruuulllDDlll
ldddrrddrruLdrrrruuUllllDllluuurrrrDulll
ldddrrruUrRdrrdddllllUUURRluuuurrrddDDDu
uuuullldddrRlluuurrrddDDulldRllldllluuur
rRllldddrrrururrruuullldDDulllldddrrruRR
llUddllluuurrRdrrrruuullldDDuuuuulllDD

Anonymous
Sun 7-Apr-2019 17:57

Very nice! I liked this one:
http://www.linusakesson.net/games/autosokoban/?v=1&seed=946768135&level=16

Anonymous
Wed 29-May-2019 00:47

Here is my Nemisis: http://www.linusakesson.net/games/autosokoban/?v=1&seed=898753728&level=28

Anonymous
Tue 25-Jun-2019 03:00

http://www.linusakesson.net/games/autosokoban/?v=1&seed=1783561528&level=100

Writing this down just to remember it, a nice little level worthy of playing. Some interesting tricks in it.

Anonymous
Tue 20-Aug-2019 08:26

I spent a little time on Autosokoban this summer vacation. I worked hard and the end result was, of course, a failure. Now I have to say that I really looked down on this problem at the beginning. I think many ordinary people may not realize the complexity of this matter as much as I did at the beginning.
Now I see your website and find that you have solved this problem perfectly more than ten years ago. Thank you, this is an impressive work.

Anonymous
Sun 24-Nov-2019 02:37

This is nice! Reminds me of the puzzles in the Zelda games, probably a connection there!

Anonymous
Fri 13-Dec-2019 10:46

I am pretty sure this one is unsolvable. Is it an error in the algorithm, or did I just overlook something obvious?
http://www.linusakesson.net/games/autosokoban/?v=1&seed=1826525112&level=13