Solver Statistics - Sasquatch VI - David W. Skinner

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This is a summary of running the Sasquatch VI collection (50 levels total) using these solvers:
• BoxSearch v5.1 beta2
• JSoko 1.37
• Takaken v7.2
• YASS v2.100

Each solver is tested separately to ensure that they don't compete for system resources.

For copyrights, credits and redistribution of these statistics, please read the disclaimer.

Though some people might be interested in how long it takes to solve a given level and/or how good the solution is (optimal or not), this summary disregards all timing associated with solving the levels and solution statistics. These tests are mainly for gauging solvability, not timing nor how good the solution is.

Not all Sokoban solvers are created equal:

  • BoxSearch: (level size limit: none)
  • JSoko: (level size limit: width=40, height=40)
  • Takaken: (level size limit: width=50, height=50, Boxes=64)
  • YASS: (level size limit: width=50, height=50)


Test machine info:

  • Machine: ThinkPad T42P
  • CPU: x86 Family 6 Model 13 Stepping 6 Genuine Intel
  • Physical RAM: 2 GB
  • OS Name & Version: Microsoft Windows XP Professional v5.12600 Service Pack 2 Build 2600.
  • NOTE 1: The JSoko results are tested on a Samsung Aura Dillen Core 2 Duo T9300 (2,5 GHz) with 3 GiB RAM, OS: Vista Home (Service Pack 1), JRE: 1.6.02_12
  • NOTE 2: The YASS results are tested on a ThinkPad T61P with the following spec:
  • CPU: x86 Family 6 Model 15 Stepping 11 Genuine Intel ~2394 Mhz
  • Physical RAM: 2 GB
  • OS Name & Version: Microsoft Windows XP Professional v5.12600 Service Pack 2 Build 2600.

Initial tests:

  • BoxSearch is set with max memory limit of 1500 MB and 600 seconds. (using quick mode)
  • JSoko is set with 1450 MB memory and 600 second limit. (any solution method)
  • Takaken is set with 1000 MB memory and 600 second limit.
  • YASS is set with 1500 MB memory and 600 second limit.

Further tests:


The following table shows the levels where each of the solvers failed:
======================================================================

         BoxSearch         JSoko          Takaken           YASS     
	==============	==============	==============	==============
 		 		 		 	     14      
 	     15       		 	     15       	     15      
 		 		 		 	     16      
 	     17       	     17       	     17       	     17      
 	     18       	     18       	     18       	     18      
 	     19       	     19       	     19       	     19      
 		 	     22       		 		
 	     28       	     28       		 		
 		 	     30       		 	     30      
 	     31       	     31       		 	     31      
 		 	     32       		 	     32      
 		 	     33       	     33       	     33      
 	     34       	     34       	     34       	     34      
 		 	     35       		 	     35      
 		 		 		 	     36      
 	     37       	     37       	     37       	     37      
 	     38       	     38       	     38       	     38      
 		 		 	     39       		
 	     40       	     40       	     40       	     40      
 	     41       	     41       		 	     41      
 	     42       	     42       	     42       	     42      
 	     43       	     43       	     43       	     43      
 	     44       	     44       	     44       	     44      
 	     45       	     45       	     45       	     45      
 	     46       	     46       	     46       	     46      
 	     47       	     47       	     47       	     47      
 	     48       	     48       	     48       	     48      
 	     49       	     49       	     49       	     49      
 	     50       	     50       	     50       	     50      
	==============	==============	==============	==============
Total:	     20		     24		     19		     26	

Total (unique level count): 29



All solvers failed on these levels: 
===================================================================================
     17      18      19      34      37      38      40      42      43      44 
     45      46      47      48      49      50 
===================================================================================
Total count: 16


"BoxSearch" failed on these levels where at least one solver solved: 
===================================================================================
     15      28      31      41 
===================================================================================
Total count: 4


"JSoko" failed on these levels where at least one solver solved: 
===================================================================================
     22      28      30      31      32      33      35      41 
===================================================================================
Total count: 8


"Takaken" failed on these levels where at least one solver solved: 
===================================================================================
     15      33      39 
===================================================================================
Total count: 3


"YASS" failed on these levels where at least one solver solved: 
===================================================================================
     14      15      16      30      31      32      33      35      36      41 
===================================================================================
Total count: 10


"BoxSearch" solved these levels where all other solvers failed: 
===================================================================================
     33 
===================================================================================
Total count: 1


"JSoko" solved these levels where all other solvers failed: 
===================================================================================
     15 
===================================================================================
Total count: 1


"Takaken" solved these levels where all other solvers failed: 
===================================================================================
     31      41 
===================================================================================
Total count: 2


"YASS" solved these levels where all other solvers failed: 
===================================================================================

===================================================================================
Total count: 0


"BoxSearch" failed on these levels where all other solvers solved: 
===================================================================================

===================================================================================
Total count: 0


"JSoko" failed on these levels where all other solvers solved: 
===================================================================================
     22 
===================================================================================
Total count: 1


"Takaken" failed on these levels where all other solvers solved: 
===================================================================================
     39 
===================================================================================
Total count: 1


"YASS" failed on these levels where all other solvers solved: 
===================================================================================
     14      16      36 
===================================================================================
Total count: 3


BoxSearch solved 30 of 50 levels.

BoxSearch 60%

JSoko solved 26 of 50 levels.

JSoko 52%

Takaken solved 31 of 50 levels.

Takaken 62%

YASS solved 24 of 50 levels.

YASS 48%

All solvers combined solved 34 of 50 levels.

All solvers 68%
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