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A Sokoban solver program is a program that <u>''tries to''</u> solve Sokoban levels. There are several solver programs available. (See [[Links#Sokoban Solvers |Sokoban solvers]].) Solver programs may have different objectives: # Find any solution # Find push optimal solutions # Find push optimal solutions with best moves # Find move optimal solutions # Find move optimal solutions with best pushes Given the computational complexity of these tasks, a solver program is usually designed for just finding any solution. If a solution is to be optimized, an optimizer program can be used. (See [[Links#Sokoban Solvers |Optimizers]].) The statistics presented here provide a picture of what the best freely available Sokoban solvers can do.<br /> For copyrights, credits and redistribution of these statistics, please read the disclaimer. == General benchmarking information == For practical reasons, almost all tests have been performed with a 10 minutes time limit. The tests are, however, not a 10 minutes contest but a showcase for what the solvers can do, so other time limits are entirely feasible. The hardware used for the tests is a standard PC with a modern operating system (64bit). Tests are performed with default solver settings. {| class="soko-table feature-list" !Solver || Version || Author || Architecture || CPU usage || Source code available || More info |- |<span class="plainlinks">[https://festival-solver.site/ Festival]</span> || 3.1 || Yaron Shoham || 64bit || 8 threads || <span class="plainlinks">[https://festival-solver.site/ Festival 3.1]</span> || <span class="plainlinks">[https://festival-solver.site/ Website with papers about the solver]</span> |- |<span class="plainlinks">[http://sokolution.infinityfreeapp.com/ Sokolution]</span> || 6.33 || Florent Diedler || 64bit || all threads || no || <span class="plainlinks">[[Sokoban solver "scribbles" by Florent Diedler about the Sokolution solver | Sokoban solver "scribbles" by Florent Diedler]]</span> |- |<span class="plainlinks">[https://computerpuzzle.net/english/sokoban/ver740/index.html Takaken]</span> || 7.4 || Ken'ichiro Takahashi (takaken) || 64bit || 2 threads || no || <span class="plainlinks">[https://computerpuzzle.net/puzzle/sokoban/ver731/index.html Description of the used algorithms]</span> |- |<span class="plainlinks">[https://festival-solver.site/curry/ Curry]</span> || 0.3 || Yaron Shoham || 64bit || 1 thread || <span class="plainlinks">[https://festival-solver.site/curry/ Curry 0.3] || <span class="plainlinks">[https://festival-solver.site/curry/ Website with paper about the solver]</span> |- |<span class="plainlinks">[https://sourceforge.net/projects/sokobanyasc/files/sokobanyasc/ YASS]</span> || 2.151 || Brian Damgaard || 32bit || 1 thread || <span class="plainlinks">[https://sourceforge.net/projects/sokobanyasc/files/sokobanyasc/ YASS 2.151]</span> || <span class="plainlinks">[[Sokoban solver "scribbles" by Brian Damgaard about the YASS solver | Sokoban solver "scribbles" by Brian Damgaard]]</span> |- |<span class="plainlinks">[https://www.sokoban-online.de/ JSoko]</span> || 2.04 || Matthias Meger || 64bit || 1 thread || <span class="plainlinks">[https://sourceforge.net/projects/jsokoapplet/files/JSoko/Version%202.03/ JSoko 2.04]</span> || [[Solver | Solver information]] |- |<span class="plainlinks">[https://webdocs.cs.ualberta.ca/~games/Sokoban/program.html Rolling Stone]</span> || 1.0 || Andreas Junghanns || 32bit || 1 thread || <span class="plainlinks">[https://webdocs.cs.ualberta.ca/~games/Sokoban/Src/ RS] || <span class="plainlinks">[https://scholar.google.com/scholar?hl=de&as_sdt=0%2C5&q=rolling+stone+sokoban&btnG= Rolling Stone papers]</span> |} Contact: SokobanoWiki@gmail.com == XSokoban Test Suite == The XSokoban level set is the de facto standard test suite in the academic literature on Sokoban solver programming. {| class="soko-table" |- ! colspan="11" | Sokoban Solver Statistics - XSokoban Test Suite - Solved Levels <!-- Header --> |- bgcolor="#f1efe5" align="center" | width="115" align="left" | Collection | width="160" | Author | width=" 70" | Levels | width= "90" | <span class="plainlinks">[https://www.researchgate.net/publication/2305703_Pushing_the_Limits_New_Developments_in_Single-Agent_Search Rolling Stone]</span> | width= "80" | <span class="plainlinks">[https://computerpuzzle.net/english/sokoban/ver740/index.html Takaken]</span> | width=" 80" | <span class="plainlinks">[https://sourceforge.net/projects/sokobanyasc/ YASS]</span> | width=" 80" | [[JSoko Solver | JSoko]] | width=" 80" | <span class="plainlinks">[http://sokolution.infinityfreeapp.com/ Sokolution ]</span> | width=" 80" | <span class="plainlinks">[https://festival-solver.site/curry/ Curry ]</span> | width=" 80" | <span class="plainlinks">[https://festival-solver.site/ Festival ]</span> <!-- -------------------------------------------------------------------------------------------------------- --> <!-- XSokoban. "Collection, author, levels, Rolling Stone, Takaken, YASS, JSoko, Sokolution, Festival" --> <!-- -------------------------------------------------------------------------------------------------------- --> |- align="right" | align="left" bgcolor="#f1efe5" | <span class="plainlinks">[https://sokoban-solver-statistics.sourceforge.io/statistics/XSokoban/ XSokoban]</span> | align="left" | Thinking Rabbit, ... | 90 | <span class="plainlinks">[https://webdocs.cs.ualberta.ca/~games/Sokoban/program.html 59*]</span> | <span class="plainlinks">[https://sokoban-solver-statistics.sourceforge.io/statistics/XSokoban/Takaken%20-%20XSokoban.html '''90''']</span> | <span class="plainlinks">[https://sokoban-solver-statistics.sourceforge.io/statistics/XSokoban/YASS%20-%20XSokoban.html 89]</span> | [[SolverStatistics-jsoko-ThinkingRabbit-XSokoban | 67 ]] | <span class="plainlinks">[https://sokoban-solver-statistics.sourceforge.io/statistics/XSokoban/Sokolution%20-%20XSokoban.html '''90''']</span> | <span class="plainlinks">[https://sokoban-solver-statistics.sourceforge.io/statistics/XSokoban/Curry%20-%20XSokoban.html '''90''']</span> | <span class="plainlinks">[https://sokoban-solver-statistics.sourceforge.io/statistics/XSokoban/Festival%20-%20XSokoban.html '''90''']</span> |} *) 59 solved puzzles according to paper [https://sokoban.dk/wp-content/uploads/2016/02/Single-Agent.pdf Sokoban Enhancing general single-agent search methods using domain knowledge] {| class="soko-table" |- <!-- -------------------------------------------------------------------------------------------- --> ! colspan="7" | Sokoban Solver Statistics - XSokoban Test Suite - Push-optimal Solutions |- bgcolor="#f1efe5" align="center" | width="115" align="left" | Collection | width="160" | Author | width=" 70" | Levels | width=" 80" | <span class="plainlinks">[https://www.researchgate.net/publication/2305703_Pushing_the_Limits_New_Developments_in_Single-Agent_Search Rolling Stone]</span> | width=" 80" | <span class="plainlinks">[http://www.ijcai.org/Abstract/16/100 Pereira et al.]</span> | width=" 80" | <span class="plainlinks">[http://sourceforge.net/projects/jsokoapplet/ JSoko]</span> | width=" 80" | <span class="plainlinks">[http://sokolution.infinityfreeapp.com/ Sokolution ]</span> <!-- -------------------------------------------------------------------------------------------- --> |- align="right" | align="left" bgcolor="#f1efe5" | XSokoban | align="left" | Thinking Rabbit, ... | 90 | <span class="plainlinks">[https://webdocs.cs.ualberta.ca/~games/Sokoban/program.html 6 ]</span> | [[SolverStatistics-Pereira-ThinkingRabbit-XSokoban-Push-Optimal | 28 ]] | <span class="plainlinks">[https://www.sokoban-online.de/jsoko/solver-statistics/ 31 ]</span> | [[SolverStatistics-Sokolutionv4.0-ThinkingRabbit-XSokoban-Push-Optimal | '''59''' ]] |} The statistic shows that Sokolution is by far the best solver when searching for push optimal solutions. == Large Test Suite == The large test suite comprises level packs selected for being a challenge for the solvers, but not too difficult. The statistics shows the results for the leading Sokoban solver programs. This test suite is not subject to change, as it is intended to be a "Large Standard Test Suite" for Sokoban solver programs. {| class="soko-table" |- ! colspan="6" | Sokoban Solver Statistics - Large Test Suite - Solved levels <!-- Header --> |- bgcolor="#f1efe5" align="center" | width="115" align="left" | | width=" 70" | Levels | width= "80" | <span class="plainlinks">[https://festival-solver.site/ Festival ]</span> | width=" 80" | <span class="plainlinks">[http://sokolution.infinityfreeapp.com/ Sokolution]</span> | width=" 80" | <span class="plainlinks">[https://computerpuzzle.net/english/sokoban/ver740/index.html Takaken]</span> | width=" 80" | <span class="plainlinks">[https://sourceforge.net/projects/sokobanyasc/ YASS]</span> |- bgcolor="#f1efe5" align="right" | align="left" | Total levels | 3272 <!-- Total levels --> | '''3205''' <!-- Festival --> | 3172 <!-- Sokolution --> | 2953 <!-- Takaken --> | 2891 <!-- YASS --> |} '''[https://sokoban-solver-statistics.sourceforge.io/statistics/LargeTestSuite/ Click here to see the detailed results for the Large Test Suite].''' Download the entire test suite [https://sourceforge.net/projects/sokoban-solver-statistics/files/Large%20Test%20Suite.zip/download here] or the individual level sets from [http://sokobano.de/de/levels.php www.sokobano.de]. == Open Test Suite == The statistics shows the results for the leading Sokoban solvers for various level collections. Please note that the grand totals are simple summations. The number of solved unique levels may differ slightly due to duplicate levels in the level packs. This test suite may be changed by adding new level collections from time to time. {| class="soko-table" |- ! colspan="6" | Sokoban Solver Statistics - Open Test Suite - Solved levels <!-- Header --> |- bgcolor="#f1efe5" align="center" | width="115" align="left" | | width=" 70" | Levels | width= "80" | <span class="plainlinks">[https://festival-solver.site/ Festival]</span> | width=" 80" | <span class="plainlinks">[http://sokolution.infinityfreeapp.com/ Sokolution]</span> | width=" 80" | <span class="plainlinks">[https://computerpuzzle.net/english/sokoban/ver740/index.html Takaken]</span> | width=" 80" | <span class="plainlinks">[https://sourceforge.net/projects/sokobanyasc/ YASS]</span> |- bgcolor="#f1efe5" align="right" | align="left" | Total levels | 10773 <!-- Total levels --> | '''9950''' <!-- Festival --> | 9694 <!-- Sokolution --> | 8919 <!-- Takaken --> | 8485 <!-- YASS --> |} '''[https://sokoban-solver-statistics.sourceforge.io/statistics/OpenTestSuite/ Click here to see the detailed results for the Open Test Suite].''' == GroupEffort Test Suite == The only reason for benchmarking the GroupEffort test suite is to demonstrate the limited veracity of the statement made in section "6 Conclusion" of the thesis, where the author writes that the GroupEffort solver "outperforms existing solvers". The benchmarks show that this was only true for the cherry-picked small test set at the time the thesis was published, never for the presumably more representative large test set. {| class="soko-table" |- ! colspan="8" | Sokoban Solver Statistics - GroupEffort Test Suite - Solved Levels <!-- -------------------------------------------------------------------------------------------- --> <!-- The header --> <!-- -------------------------------------------------------------------------------------------- --> |- bgcolor="#f1efe5" align="center" <!-- standard format of all rows --> | width = "115" align="left" | Collection | width = "80" | Levels | width = "80" | <span class="plainlinks">[https://baldur.iti.kit.edu/theses/SokobanPortfolio.pdf GroupEffort]</span> | width = "80" | <span class="plainlinks">[https://festival-solver.site/ Festival]</span> | width = "80" | <span class="plainlinks">[http://sokolution.infinityfreeapp.com/ Sokolution]</span> | width = "80" | <span class="plainlinks">[http://www.ic-net.or.jp/home/takaken/e/soko/index.html Takaken]</span> | width = "80" | <span class="plainlinks">[https://sourceforge.net/projects/jsokoapplet/ JSoko]</span> | width = "80" | <span class="plainlinks">[https://sourceforge.net/projects/sokobanyasc/ YASS]</span> <!-- -------------------------------------------------------------------------------------------- --> <!-- Small Set --> <!-- -------------------------------------------------------------------------------------------- --> |- align="right" | align="left" bgcolor="#f1efe5" | [[SolverStatistics-GroupEffort-Small-Set | Small Set]] | 200 | 196 (a)(c) | [[SolverStatistics-Festival-GroupEffort-Small-Set | '''200''' (b) ]] | [[SolverStatistics-Sokolution-GroupEffort-Small-Set | '''200''' (a) ]] | [[SolverStatistics-Takaken-GroupEffort-Small-Set | 192 (b) ]] | [[SolverStatistics-JSoko-GroupEffort-Small-Set | 180 (b) ]] | [[SolverStatistics-YASS-GroupEffort-Small-Set | 191 (b) ]] <!-- -------------------------------------------------------------------------------------------- --> <!-- Large Set --> <!-- -------------------------------------------------------------------------------------------- --> |- align="right" | align="left" bgcolor="#f1efe5"| [[SolverStatistics-GroupEffort-Large-Set | Large Set]] | 2851 | 1566 (a)(c) | [[SolverStatistics-Festival-GroupEffort-Large-Set | '''2766''' (b) ]] | [[SolverStatistics-Sokolution-GroupEffort-Large-Set | 2471 (a) ]] | [[SolverStatistics-Takaken-GroupEffort-Large-Set | 2462 (b) ]] | [[SolverStatistics-JSoko-GroupEffort-Large-Set | 2165 (b) ]] | [[SolverStatistics-YASS-GroupEffort-Large-Set | 2260 (b) ]] <!-- -------------------------------------------------------------------------------------------- --> <!-- Total --> <!-- -------------------------------------------------------------------------------------------- --> |- align="right" bgcolor="#f1efe5" align="right" | align="left"| Total | 3051 <!-- Total levels --> | 1762 <!-- Group Effort --> | '''2966''' <!-- Festival --> | 2671 <!-- Sokolution --> | 2654 <!-- Takaken --> | 2345 <!-- JSoko --> | 2471 <!-- YASS --> |} (a): Time limit: 5 minutes &nbsp;&nbsp;&nbsp; (b): Time limit: 10 minutes &nbsp;&nbsp;&nbsp; (c): Best GroupEffort solver configuration == Disclaimer == Sokoban ======= <br> Sokoban (R) Registered Trademark of Falcon Co., Ltd., Japan Sokoban Copyright (C) 1982-2004 by Hiroyuki Imabayashi, Japan Sokoban Copyright (C) 1989, 1990, 2001-2004 by Falcon Co., Ltd., Japan <br> License ======= <br> Redistribution and use of the Sokoban Solver statistics are permitted provided that the following conditions are met: <br> * Redistributions may not be sold, nor may they be used in a commercial product or activity. * Redistributions must reproduce the entire content of this disclaimer in the documentation and/or other materials provided with the distribution. <br> Credits (in no particular order) ================================ <br> CosmoNotes, CosmoPoly, LOMA, MicroCosmos, MiniCosmos, NaboCosmos and PicoCosmos level sets Copyright (C) by Aymeric du Peloux. E-mail: aymeric.du-peloux@gadz.org Web site: unknown <br> dh1, dh2, bagatelle, cantrip, and maelstrom level sets Copyright (C) by David Holland E-mail: unknown Web site: unknown <br> Microban, Mas Microban, Sasquatch, Mas Sasquatch, Sasquatch III, Sasquatch IV, Sasquatch V, Sasquatch VI and Sasquatch VII level sets. Copyright (C) by David W. Skinner E-mail: sasquatch@bentonrea.com Web site: unknown <br> Grigr2001, Grigr2002 and GrigrSpecial level sets Copyright (C) by Evgeny Grigoriev (aka GRIGoRusha) E-mail: grigr@yandex.ru Web site: http://grigr.narod.ru/ <br> SokEvo and SokHard level sets Copyright (C) 2002-2006 by Lee J Haywood E-mail: fruise@gmail.com Web Site: http://leehaywood.org/games/sokoban/ <br> Sven level set Copyright (C) 2007 by Sven Egevad E-mail: sven.egevad@telia.com Web Site: unknown <br> Sokoban Perfect and Sokoban Revenge level sets Copyright (C) 1989, 1991 by Thinking Rabbit Web Site: https://sokoban.jp/ <br> Y.M. Auto and Y.M. Handmade level sets Copyright (C) Yoshio Murase E-mail: yoshio@asahi.email.ne.jp Web Site: http://www.ne.jp/asahi/ai/yoshio/sokoban/index.html <br> JSoko Copyright (C) by Matthias Meger E-mail: JSoko@mail.de Web site: https://www.sokoban-online.de <br> Sokoban Automatic Solver (aka Takaken solver) Copyright (C) 2002 - 200X Ken'ichiro Takahashi (aka takaken) E-mail: takaken@ic-net.or.jp Web site: https://computerpuzzle.net/english/sokoban/ver740/index.html <br> YASS - Yet Another Sokoban Solver and Optimizer - For Small Levels Copyright (C) 2007 by Brian Damgaard Web site: https://sourceforge.net/projects/sokobanyasc/ <br> Sokoban YASC Copyright (C) 2001-2020 by Brian Damgaard Web Site: https://sourceforge.net/projects/sokobanyasc/ <br> YSokoban Copyright (C) 2007 by George Petrov E-mail: YGP@WriteMe.com Web Site: http://ygp.orgfree.com/sokoban.html <br> XSokoban Copyright (C) by Andrew Myers E-mail: andru@cs.cornell.edu Web Site: http://www.cs.cornell.edu/andru/xsokoban.html <br> Sokofan Copyright (C) 2005-2007 by Eric Leung E-mail: eleung2@hotpop.com Web Site: unknown <br> Sokolution Copyright (C) 2016-2019 by Florent DIEDLER E-mail: fdiedler2000@gmail.com Web site: http://sokolution.infinityfreeapp.com/ <br> Festival Copyright (C) 2020 by Yaron Shoham Web site: https://festival-solver.site/ <br> Trademarks ========== <br> Company names, brand names and product names are trademarks or registered trademarks of their respective holders. <br> Contact ======= <br> E-mail: sokobanowiki@gmail.com

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