Sokoban Originals and Duplicate Puzzles

Puzzle Comparisons

The collections compared are:

The Originals (in the form of the Sokoban_Original_Puzzles_Tribute.sok file)
Boxxle 1 (in the form of the Boxxle-01-(108).txt file*)
Boxxle 2 (in the form of the Boxxle-02-(120).txt file)
Perfect (in the form of the Perfect.txt file)
Revenge (in the form of the Revenge.txt file)

Many thanks to:

Mark from the Sokoban for Windows forum for making available the complete Boxxle 1 and 2, Perfect and Revenge files.

ben from the same forum for his comparison of the Boxxle 1/2 files with the original GameBoy puzzles from both the Japanese and US releases of the game.

Sokoban Online (http://www.sokobanonline.com) for including the Boxxle 1 hidden puzzle in their online collection.

The Boxxle 1 and 2 files contain puzzles that are vertically flipped from the way they occur in the GameBoy version. While I did not change this orientation during my comparison, I did ignore it as inconsequential as it makes no difference to the comparisons.

* There is a hidden puzzle in the GameBoy variant that was not included in this file. I added it to the collection, making 109 puzzles.)

About Duplicates

It seems that I have a different idea of what a duplicate is when compared to the commonly accepted definition of what a duplicate is. Here I include my ideas on this as taken from the file notes section of the originals duplicates file, Duplicates.sok. Duplicates.sok is a Sokoban YASC file format collection file. It is not intended to be playable, but rather to allow the user to view the like puzzles side-by-side. For me, this makes it easier to see what the differences are without having to flip back and forth between two different collections to do the comparison. For some this approach does not work, and they prefer to do the flipping method. To each their own.

A different view of duplication:

There are certain puzzles that are duplicates with slight modifications which will render a different solution. In those cases where the modification is the addition or removal of one or more boxes or goals, the puzzle is considered unique as the solution is unique and will not solve the unmodified variant, nor will the solution to the unmodified variant solve the modified puzzle. In the remaining cases where the modification is the addition or removal of a wall block, more thought is required. The solution to the less difficult puzzle can be significantly different as to make that solution not applicable to the more difficult variant. However, the solution to the more difficult puzzle is applicable to the less difficult puzzle and will solve that puzzle. Therefore these should be considered as duplicates. Note that this definition of duplicate is based on the puzzles being identical in every other way beyond the minute differences. I leave it to others to argue the merits of this point of view.

My strongest arguments as to the idea that these puzzles are duplicates are:

1. There is a difference between a duplicate and an identical duplicate.


2. If you don't know what the differences are, they appear to be the same puzzles to the human eye. It is humans that the game was designed for, not computers, and therefore the appearance to the uneducated human should be the determining factor.


3. All of the puzzles began as single puzzles which were then manipulated by the software companies. This is where the term "remodel" comes from as it applies to sokoban puzzles. In the case of the originals, the modified versions occupy the same position in the collections they occur in as the first original does, and are known by the same level number as the original. In doing so, they become the replacement original, and are the same puzzle, only remodeled.

If, then, either the original or the remodeled original are included in a different collection, whether further remodeled or not, they constitute duplicates of the original.

This definition of duplication is not widely accepted in the sokoban community. Due to the currently accepted definition, most people asked will disagree with this definition. My position is that as time changes, so do definitions, and at some point this definition will become the "currently accepted definition".

The comparisons

I am including here the actual puzzles from each of the files compared. Each set of duplicates will be arranged side-by-side. The file containing the duplicates is available in a link below the duplicates of a given comparison. All Boxxle 1 and 2 puzzles are shown vertically flipped as that is how they occur in the Boxxle-01-(108).txt and Boxxle-02-(120).txt files.

The Originals

Original Level 2 All variants (left) Boxxle 1 Level 31 (middle) Perfect Level 25 (right) These puzzles are identical.
############ ############ ############ #.. # ### # # # #.. # ### #.. # $ $ # # $ $ $ $ # #.. # $ $ # #.. #$#### # ###### ##$ $ # #.. #$#### # #.. @ ## # #.. # # $ ## #.. @ ## # #.. # # $ ## #.. @ ## # #.. # # $ ## ###### ##$ $ # #.. #$#### # ###### ##$ $ # # $ $ $ $ # #.. # $ $ # # $ $ $ $ # # # # #.. # ### # # # ############ ############ ############
Original Level 3 All variants (left) Boxxle 1 Level 33 (middle) Perfect Level 62 (right) These puzzles are identical.
######## ######## ######## # @# #.... ########## # @# # $#$ ## ##... $ $ # # $#$ ## # $ $# #.... ## $ $ # # $ $# ##$ $ # ######### $ # ### ##$ $ # ######### $ # ### ##$ $ # ######### $ # ### #.... ## $ $ # # $ $# #.... ## $ $ # ##... $ $ # # $#$ ## ##... $ $ # #.... ########## # @# #.... ########## ######## ######## ########
Original Level 6 All variants (left) Boxxle 1 Level 35 (middle) Perfect Level 63 (right) These puzzles are identical.
###### ### ######### ###### ### #.. # ##@## # ## # #.. # ##@## #.. ### # # $ $ # #.. ### # #.. $$ # # $# $ # #.. $$ # #.. # # $ # #### $ #$ # #.. # # $ # #..### # $ # #..### # $ # #..### # $ # #### $ #$ # #.. # # $ # #### $ #$ # # $# $ # #.. $$ # # $# $ # # $ $ # #.. ### # # $ $ # # ## # #.. # ##@## # ## # ######### ###### ### #########
Original Level 10 Color Computer (left) Original Level 10 MS-DOS, Apple II, Commodore 64, XSokoban (right) Color Computer: Wall block at column N, row 2. MS-DOS, Apple II, Commodore 64, XSokoban: Wall block at column O, row 2.
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Original Level 11 Color Computer, MS-DOS, Apple II, Commodore 64 (left) Original Level 11 XSokoban (second from left) Boxxle 1 Level 65 (second from right) Perfect Level 166 (right) Color Computer, MS-DOS, Apple II, Commodore 64, Boxxle 1 and Perfect are identical. Color Computer, MS-DOS, Apple II, Commodore 64, Boxxle 1 and Perfect: Start position at column H, row 4. XSokoban: Start position at column H, row 3.
#### #### ####### #### #### # # #### # # #.....# #### # # ### ###$ # ### @###$ # #...#.# ### ###$ # ## @ $ # ## $ # #.. ..# #### ## @ $ # ## $ $$## ## ## $ $$## ## #. ### ######## ## $ $$## ## # #$## # # #$## # #### ## $ # # #$## # # # $ $$ # ### # # $ $$ # ### #### # $$ # # # # $ $$ # ### # $ # # $ ##### # $ # # $ ##### # $ # # $ ##### # $ # # $ ##### #### # $$ # # #### # $$ # # # # $ $$ # ### #### # $$ # # #### ## $ # #### ## $ # # #$## # #### ## $ # #. ### ######## #. ### ######## ## $ $$## ## #. ### ######## #.. ..# #### #.. ..# #### ## @ $ # #.. ..# #### #...#.# #...#.# ### ###$ # #...#.# #.....# #.....# #### # # #.....# ####### ####### #### #######
Original Level 12 Color Computer, MS-DOS, Apple II, Commodore 64 (left) Original Level 12 XSokoban (second from left) Boxxle 1 Level 71 (second from right) Perfect Level 171 (right) Color Computer, MS-DOS, Apple II, Commodore 64, Boxxle 1, and Perfect are identical. Color Computer, MS-DOS, Apple II, Commodore 64, Boxxle 1, and Perfect: Wall block at column E, row 8. XSokoban: Wall block is removed.
################ ################ ####### ################ # # # # # # # # # # ###### # # # ###### # ##### ### # # ###### # # # $ $ $ $# # # # $ $ $ $# # ##### ## ##...# # # $ $ $ $# # # # $@$ ## ## # # $@$ ## ## # # ## ##...# # # $@$ ## ## # # #$ $ $###...# # # $ $ $###...# # ###$$$ $ ##...# # # #$ $ $###...# # # $ $ ##...# # # $ $ ##...# # # $ $ ##...# # # $ $ ##...# # ###$$$ $ ##...# # ###$$$ $ ##...# # # #$ $ $###...# # ###$$$ $ ##...# # # ## ##...# # # ## ##...# # # $@$ ## ## # # ## ##...# ##### ## ##...# ##### ## ##...# # # $ $ $ $# # ##### ## ##...# ##### ### ##### ### # # ###### # ##### ### # # # # # # # # ####### ####### ################ #######
Original Level 14 All variants (left) Boxxle 1 Level 72 (middle) Perfect Level 211 (right) These puzzles are identical.
####### #### ####### ####### # ######## # ####### # # # $@$ # # # # # # $@$ # #$$ # ######### ### ### # # #$$ # ######### # ###......## # ##### $ # # # ###......## # # $......## # # # $ $ ###$$ # # # $......## # # # ###...... # # $ $$$ # $## # # ###...... # ## #### ### #$## # #$ # $ # # ## #### ### #$## # #$ # $ # # ## #### ### #$## # #$ # $ # # # $ $$$ # $## # # ###...... # # $ $$$ # $## # # $ $ ###$$ # # # $......## # # # $ $ ###$$ # # ##### $ # # # ###......## # ##### $ # # ### ### # # #$$ # ######### ### ### # # # # # # # $@$ # # # # ######## # ####### # ######## # #### ####### ####
Original Level 16 All variants (left) Boxxle 1 Level 78 (middle) Perfect Level 216 (right) These puzzles are identical.
##### #### ##### # ## # # # ## # # #### # ######### # # #### # $ #### # # $$ #.....# # $ #### # # $$ $ $# # #.*...# # $$ $ $# ###@ #$ ## ### $..##.# ###@ #$ ## # ## $ $ ## # #$##$ #.# # ## $ $ ## # $ ## ## .# # $ ## ## .# # $ ## ## .# # #$##$ #.# # ## $ $ ## # #$##$ #.# ### $..##.# ###@ #$ ## ### $..##.# # #.*...# # $$ $ $# # #.*...# # $$ #.....# # $ #### # # $$ #.....# # ######### # # #### # ######### # # # ## # # #### ##### ####
Original Level 17 All variants (left) Boxxle 1 Level 64 (middle) Perfect Level 165 (right) These puzzles are identical.
########## ###### ########## #.. # # # # #.. # # #.. # #### ## ####### #.. # #.. # #### # @$ $ # ## #.. # #### ####### # ## # # $ $ # $ # ####### # ## # # # $ ##### # # # # # # ## # # #### ## #### ## # # ## # # #### ## #### ## # # ## # # #### ## #### ## # $ ##### # # # # # $ ##### # # # # $ $ # $ # ####### # ## # # $ $ # $ # # @$ $ # ## #.. # #### # @$ $ # ## #### ## ####### #.. # #### ## ####### # # #.. # # # # ###### ########## ######
Original Level 20 Color Computer, MS-DOS, Apple II, Commodore 64 (left) Original Level 20 XSokoban (right) Color Computer, MS-DOS, Apple II, Commodore 64: Boxes at column O, rows 11 & 13 on goals and two additional boxes located at column H, row 6 and column J, row 10. XSokoban: First two boxes not on goals and the second two are removed.
########## ########## ##### #### ##### #### # # $ #@ # # # $ #@ # # #######$#### ### # #######$#### ### # # ## # #$ ..# # # ## # #$ ..# # # $ $ # # #.# # # $ # # #.# # # $ # #$ ..# # # $ # #$ ..# # # ### ## #.# # # ### ## #.# # ### # # #$ ..# # ### # # #$ ..# # # # $#### #.# # # # #### #.# # #$ $ $ #* ..# # #$ $ $ #$ ..# # $ # $ $ # #.# # $ # $ $ # #.# #### $### #* ..# #### $### #$ ..# # $$ ###....# # $$ ###....# # ## ###### # ## ###### ######## ########
Original Level 21 All variants (left) Boxxle 1 Level 54 (middle) Perfect Level 82 (right) These puzzles are identical.
######### ##### ######### # # ## ##### # # # #### ##### $ #...# # #### ## #### # # # # # ##...# ## #### # # ## #@## # # # # #.. .# ## #@## # # $$$ $ $$# # ## ....# # $$$ $ $$# # # ## $ # #### $$$ $# # # # ## $ # # # ## $ #### # # ## $ #### # # ## $ #### #### $$$ $# # # # ## $ # #### $$$ $# # # ## ....# # $$$ $ $$# # ## ....# # # # #.. .# ## #@## # # # # #.. .# # # # ##...# ## #### # # # # # ##...# ##### $ #...# # #### ##### $ #...# ## ##### # # ## ##### ##### ######### #####
Original Level 23 Color Computer, MS-DOS, Apple II, XSokoban (left) Original Level 23 Commodore 64 (right) Color Computer, MS-DOS, Apple II, XSokoban: Start position at column D, row 8. Commodore 64: Start position at column C, row 6.
####### ####### # # #### # # #### ##### $#$ # ## ##### $#$ # ## #.. # # # # #.. # # # # #.. # $#$ # $#### #.. # $#$ # $#### #. # #$ # # #.@ # #$ # # #.. $# # $ # #.. $# # $ # #..@# #$ #$ # # #.. # #$ #$ # # #.. # $# $# # #.. # $# $# # #.. # #$$#$ # ## #.. # #$$#$ # ## #.. # $# # $#$ # #.. # $# # $#$ # #.. # # # # # #.. # # # # # ##. #### ##### # ##. #### ##### # #### #### ##### #### #### #####
Original Level 24 Color Computer (left) Original Level 24 MS-DOS, Apple II, Commodore 64, XSokoban (right) Color Computer: Start position at column C, row 14. MS-DOS, Apple II, Commodore 64, XSokoban: Start position at column D, row 15.
############### ############### #.......... .#### #.......... .#### #..........$$.# # #..........$$.# # ###########$ # ## ###########$ # ## # $ $ $ # # $ $ $ # ## #### # $ # # ## #### # $ # # # # ## # ## # # ## # ## # $# # ## ### ## # $# # ## ### ## # $ #$### ### ## # $ #$### ### ## ### $ # # ### ## ### $ # # ### ## ### $ ## # # ## ### $ ## # # ## # $ # $ $ $ # # $ # $ $ $ # # $ $#$$$ # # # $ $#$$$ # # #@ # $ ##### # # $ ##### # ## # # # # @## # # # ############## ##############
Original Level 25 Color Computer, MS-DOS, Apple II, Commodore 64 (left) Original Level 25 XSokoban (right) Color Computer, MS-DOS, Apple II, Commodore 64: Two wall blocks at columns I & J, row 13. XSokoban: Both wall blocks are removed.
#### #### # ############## # ############## # # ..#......# # # ..#......# # # # ##### ...# # # # ##### ...# ##$# ........# ##$# ........# # ##$###### #### # ##$###### #### # $ # ######@ # # $ # ######@ # ##$ # $ ###### # ##$ # $ ###### # # $ #$$$## # # $ #$$$## # # # #$#$### # # #$#$### # #### #$$$$$ # # #### #$$$$$ # # # $ # # # # $ # # # # ## ## ### # # ## ### # ######$###### $ # # ######$###### $ # # # # # # # # # ########## ##### ########## #####
Original Level 26 All variants (left) Boxxle 1 Level 50 (middle) Perfect Level 76 (right) These puzzles are identical.
####### ######## ####### # # ##### # ## # # ##### ## # #...### ###### ##$$@# ## # #...### # $# #... # ## # $$ # # # $# #... # # $ #$$ ... # ##$ $ $ # # $ #$$ ... # # $# #... .# # # $######## # $# #... .# # # $######## # $# #... .# # # $######## ##$ $ $ # # $ #$$ ... # ##$ $ $ # ## # $$ # # # $# #... # ## # $$ # # ###### ##$$@# ## # #...### ###### ##$$@# # ## # # ##### # ## ######## ####### ########
Original Level 27 Color Computer, MS-DOS, Commodore 64, XSokoban (left) Original Level 27 Apple II (right) Color Computer, MS-DOS, Commodore 64, XSokoban: Start position at column K, row 12. Apple II: Start position at column L, row 12.
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Original Level 28 All variants (left) Boxxle 1 Level 63 (middle) Perfect Level 163 (right) These puzzles are identical. Boxxle 1 is rotated 90° counter-clockwise. Perfect is rotated 180°.
##### ########### ##### ##### # #.... ..# # ###### ## $ $ #### # .......## #### $ $ # ##### $ $ $ ##.# ### .#....##### #. # $ $$ # # $$ ##..# # #$##..## # #...$ $ $ ## # ###### ###.. # # #### $ # #..## $$ $ #### ## # # #... # # $$ # # $ # #...#### ## $# @# # $ # #... # ## $$# $$ ## # ...# # $ # #@ #$ ## ####...# #$ $ #$ # # ...# # # ## #### $ $$ ##..# # $$ # # $# # ..### ###### # ## $ $ $...# # $ $#### $ # #..## $$ # # $$ $ # .# # # ## #.## $ $ $ ##### # $ $ #### #### $ # ## #### $ $ ## ###### # ### ## # # ##### ##### # $ # ##### #@ # # #######
Original Level 29 All variants (left) Boxxle 1 Level 104 (middle) Perfect Level 284 (right) These puzzles are identical.
##### ################### ##### # ## # # # # # # # ## # $ ######### # $ $ $ $ # # $ ######### ## # # ###### # $########## ##$ # ## # # ###### ## # $#$#@ # # ## ## *.*..*.* # ## ## # $#$#@ # # # # $ # $ # # ## ..*..... # ## # # $ # $ # # ### ######### ## # ### ######### ## # ### ######### ## # ## ..*..... # ## # # $ # $ # # ## ..*..... # ## ## ## *.*..*.* # ## ## # $#$#@ # # ## ## *.*..*.* # ## # $########## ##$ # ## # # ###### # $########## ##$ # # $ $ $ $ # # $ ######### # $ $ $ $ # # # # # # # # ## # # # # # # ################### ##### ###################
Original Level 31 All variants (left) Boxxle 1 Level 48 (middle) Perfect Level 148 (right) Original: Start position at column I, row 4. Boxxle 1 and Perfect: Start position at column I, row 3.
#### ##### #### # ######### #...# # ######### ## ## # # #...## ## ## @# # # $# $@$ #### #....#### # $# $ $ #### #$ $ # $ $# ## ####......#### #$ $ # $ $# ## ## $## #$ $ # # #.... # ## $## #$ $ # # # # # $$$ # ## ### ###$ # # # # # $$$ # # $ $ $## #### # $ $ #$# # # # $ $ $## #### # $ $ #$# # # # $ $ $## #### # $ $ #$# # # ## ### ###$ # # # # # $$$ # ## ### ###$ # # #.... # ## $## #$ $ # # #.... # ####......#### #$ $ # $ $# ## ####......#### #....#### # $# $ $ #### #....#### #...## ## ## @# # #...## #...# # ######### #...# ##### #### #####
Original Level 32 All variants (left) Boxxle 1 Level 44 (middle) Perfect Level 146 (right) These puzzles are identical. Perfect is rotated 90° clockwise.
#### #### ### ##### # # # ######@## ## $# #$ ### #....#$ ## ## $ ## ### # ### #....# $ # #@$ $ # $ # ######$ $ # #.... $ # #### ## $# #... # $ # # ...# # #....#$ $ # #.... $$ ## ###### ##### ## #....# $# #....# $# # $ $ $ # # #.... $$ ## #....#$ $ # # $$ $ $ # #... # $ # #### ## $# ### $ $ $ #### ######$ $ # #@$ $ # $ # ## $ $ # # ### ## $ ## ### # ###### #$ ### ## $# #### # # ##### # #### ####
Original Level 33 All variants (left) Boxxle 1 Level 38 (middle) Perfect Level 71 (right) These puzzles are identical. Perfect is rotated 90° clockwise.
############ ############ ############### ## ## # ###..## # ###.# #### ## $ $ # ##....# $ # ##..# $ $ # # #### ## $$ # #.....# $# # #...# ## $ # # # $ # # ####.. $ #@# #..... #$$ # # $$$ # #### # ..# #### ##....$ #$ # # # # $ ## # $# $# # #### ####### # # # # $ # # # # $ # # $ ## # $# $# # # # # $ ## # $ # $# $ ## # ..# #### # $$$ # #### # $### $ # $$ # ####.. $ #@# # $ # # # @# ## # #.....# $# # #### ## $$ # ############### ##....# $ # ## $ $ # ###..## # ## ## # ############ ############
Original Level 34 All variants (left) Boxxle 1 Level 41 (middle) Perfect Level 72 (right) These puzzles are identical.
######### #### ######### #.... ## # ##### #.... ## #.#.# $ ## ###$ $ ### #.#.# $ ## ##....# # @## # $ # $ # ##....# # @## # ....# # ## # ## ## ## # ....# # ## # #$ ##$ # # ### ## # # #$ ##$ # ## ### $ # # # $ $ ## # ## ### $ # #$ $ $ $# # #$ $ $ $# # #$ $ $ $# # # # $ $ ## # ## ### $ # # # $ $ ## # # ### ## # # #$ ##$ # # ### ## # # ## ## ## # ....# # ## # ## ## ## # $ # $ # ##....# # @## # $ # $ # ###$ $ ### #.#.# $ ## ###$ $ ### # ##### #.... ## # ##### #### ######### ####
Original Level 37 Color Computer, MS-DOS, Apple II, Commodore 64 (left) Original Level 37 XSokoban (right) Color Computer, MS-DOS, Apple II, Commodore 64: Wall block at column M, row 5. XSokoban: Wall block is removed.
########### ########### #...... ######### #...... ######### #...... # ## # #...... # ## # #..### $ $ # #..### $ $ # #... $ $ # ### # #... $ $ # ## # #...#$##### # # #...#$##### # # ### # #$ #$ # ### # #$ #$ # # $$ $ $ $## # # $$ $ $ $## # # $ #$#$ ##$ # # $ #$#$ ##$ # ### ## # ## # ### ## # ## # # $ $ ## ###### # $ $ ## ###### # $ $ # # $ $ # ## # # # ## # # # #####@##### #####@##### ### ###
Original Level 38 All variants (left) Boxxle 1 Level 82 (middle) Perfect Level 172 (right) Original and Boxxle 1 are identical. Original and Boxxle 1: Start position at column I, row 2. Perfect: Start position at column H, row 4.
#### #### #### ####### @# # ####### ####### # # $ # #$ $ # # $ # # $## $# # # #$ # # $##@$# ##$#...# # # #. .# ## ##$#...# # # $... # # $... # # $... # # #. .# ## ##$#...# # # #. .# ## # # #$ # # $## $# # # #$ # #$ $ # # $ # #$ $ # # ####### ####### @# # ####### #### #### ####
Original Level 40 All variants (left) Boxxle 1 Level 99 (middle) Perfect Level 242 (right) These puzzles are identical.
############ ######### ############ # ## #.... # # ## # # #$$ $ # #.... # # # #$$ $ # #$ #$# ## @# #.#... ## #$ #$# ## @# ## ## # $ # ## #....# ######## ## ## # $ # ## # $ #$ # # ######$$ # # # $ #$ # # # # $ # # # ## $$# # # # $ # # ## $ $ ## # # # ## $ # ## $ $ ## # # # ## $ # ## $ $ ## # # # ## $ # # ## $$# # # # $ # # # ## $$# # ######$$ # # # $ #$ # # ######$$ # # #....# ######## ## ## # $ # ## #....# ######## #.#... ## #$ #$# ## @# #.#... ## #.... # # # #$$ $ # #.... # #.... # # ## #.... # ######### ############ #########
Original Level 42 Color Computer, Apple II (top row left) Original Level 42 MS-DOS (top row middle) Original Level 42 Commodore 64 (top row right) Original Level 42 XSokoban (bottom row left) Boxxle 1 Level 81 (bottom row middle) Perfect Level 224 (bottom row right) Color Computer, Apple II, Boxxle 1 and Perfect are identical. Boxxle 1 is rotated 90° counter-clockwise. Boxes different in other puzzles: column C, row 9 and column F, row 11. MS-DOS repositions them at column D, row 9 and column G, row 11. Commodore 64 repositions the first at column D, row 9, creating a deadlock. XSokoban repositions the first at column D, row 8.
######## ######## ######## #### ###### #### ###### #### ###### # ## $ $ @# # ## $ $ @# # ## $ $ @# # ## ##$#$ $ $## # ## ##$#$ $ $## # ## ##$#$ $ $## ### ......# $$ ## ### ......# $$ ## ### ......# $$ ## # ......# # # # ......# # # # ......# # # # # ......#$ $ # # # ......#$ $ # # # ......#$ $ # # # ...... $$# $ # # # ...... $$# $ # # # ...... $$# $ # # $ ### ###$ $ ## # $### ###$ $ ## # $### ###$ $ ## ### $ $ $ $ # ### $ $ $ $ # ### $ $ $ $ # # $ $ $ $ # # $ $ $ $ # # $ $ $ $ # ###### ###### ###### ###### ###### ###### ##### ##### ##### ######## ###### ######## #### ###### # # #### ###### # ## $ $ @# #### ##$### # ## $ $ @# # ## ##$#$ $ $## # # # ## ##$#$ $ $## ### ......# $$ ## # #....# # ### ......# $$ ## # ......# # # ## #....#$$# # ......# # # # # ......#$ $ # # ....# # # # ......#$ $ # # #$...... $$# $ # # ##.... ## # # ...... $$# $ # # ### ###$ $ ## # ##....#$$ # # $ ### ###$ $ ## ### $ $ $ $ # # $....# # ### $ $ $ $ # # $ $ $ $ # # $#### # # # $ $ $ $ # ###### ###### # $ $$$$$## ###### ###### ##### ##$ $ # ##### # $$# # # # $ $ $$$# # $ $ # #@## #### ########
Original Level 43 All variants (left) Boxxle 1 Level 36 (middle) Perfect Level 67 (right) These puzzles are identical.
####### ######### ####### ##### # #### ######## ## # # ##### # #### # # $ # #...# ### $ $ # # # $ # #### #$$ ## ## # #...# @ # ### ## #### #$$ ## ## # ## # # ## ### #... # ## # # ## # # ## ### # ### $#$ $ $ # # ### $#$ $ $ # # ### $#$ $ $ # #... # ## # # ## # # ## ### #... # ## # # #...# @ # ### ## #### #$$ ## ## # #...# @ # ### ## #...# ### $ $ # # # $ # #...# ### $ $ # ######## ## # # ##### # #### ######## ## # # ######### ####### #########
Original Level 44 All variants (left) Boxxle 1 Level 87 (middle) Perfect Level 174 (right) These puzzles are identical.
##### ######### ##### # # # # # # # # ####### # ### # # # # ###### # $@###### #### # #...# # # $@###### # $ ##$ ### # ###### ### ... # # $ ##$ ### # # #### $ $ # # # #...# # # #### $ $ # # ##### # #$ #### # $# $ # ## ## # # ##### # #$ #### ## #### ##$ # ## #### ##$ # ## #### ##$ # # $# $ # ## ## # # ##### # #$ #### # $# $ # ## ## # # # #...# # # #### $ $ # # # #...# # ###### ### ... # # $ ##$ ### # ###### ### ... # #### # #...# # # $@###### #### # #...# # # ### # # # # ###### # ### # # # # # # # # ######### ##### #########
Original Level 45 All variants (left) Boxxle 1 Level 79 (middle) Perfect Level 218 (right) These puzzles are identical.
##### #### ### ##### #### #...# # #### # ## #### #...# # #### #...### $ # # ###### ### #...### $ # #....## $ $### # # $ $$ $ ### #....## $ $### ##....## $ # # $ @ $ $ # ##....## $ # ###... ## $ $ # # $ # #$ $ # ###... ## $ $ # # ## # $ # # ## # ### #### # ## # $ # # ## # ### #### # ## # $ # # ## # ### #### # $ # #$ $ # ###... ## $ $ # # $ # #$ $ # # $ @ $ $ # ##....## $ # # $ @ $ $ # # # $ $$ $ ### #....## $ $### # # $ $$ $ ### # ###### ### #...### $ # # ###### ### # ## #### #...# # #### # ## #### ### ##### #### ###
Original Level 46 All variants (left) Boxxle 1 Level 98 (middle) Perfect Level 241 (right) These puzzles are identical. Perfect is rotated 90° clockwise.
########## ######### ###### # #### #.......# # # # ###### # ## #.......### ##### ### ## # # # $ $ $ $ # # # #.. ##### $ # # # #$ # ## ##### # #.. $ $# # ###$ $$# ### # ## # # #.. ## ## # # # ## # $## # # $ # #.. ## $ #$ $# # ##$# $ @# # $ $ ### #.. # $ # # # $ $ ### ##$# $ @# #.. # $ ###$ # # # $ # # ## # $## #.. # $ $ $ ### # ## # # ###$ $$# ### ### ## # $ # ## ##### # # #$ # # #@## $ # # # # # $ $ $ $ # ######### ## #.......### # ###### # ## #### #.......# # #### ######### ##########
Original Level 47 Color Computer, MS-DOS, Apple II, Commodore 64 (left) Original Level 47 XSokoban (second from left) Boxxle 1 Level 100 (second from right) Perfect Level 244 (right) Color Computer, MS-DOS, Apple II, Commodore 64, Boxxle 1 and Perfect are identical. Color Computer, MS-DOS, Apple II, Commodore 64, Boxxle 1 and Perfect: Start position at column H, row 6. XSokoban: Start position at column G, row 6.
#### #### #### #### ######### ## ######### ## # ####### ######### ## ## $ $ ##### ## $ $ ##### ###$ ####### ## $ $ ##### # ## ## ##...# # ## ## ##...# # $ $$ $ ##....# # ## ## ##...# # #$$ $ $$#$##...# # #$$ $ $$#$##...# # $# ###$$ ...# # #$$ $ $$#$##...# # # @ # ...# # # @ # ...# # # @ # ...# # # @ # ...# # $# ###$$ ...# # $# ###$$ ...# # #$$ $ $$#$##...# # $# ###$$ ...# # $ $$ $ ##....# # $ $$ $ ##....# # ## ## ##...# # $ $$ $ ##....# ###$ ####### ###$ ####### ## $ $ ##### ###$ ####### # ####### # ####### ######### ## # ####### #### #### #### ####
Original Level 48 All variants (left) Boxxle 2 Level 33 (middle) Perfect Level 77 (right) These puzzles are identical. Boxxle 2 and Perfect are rotated 90° clockwise.
######### #### #### #*.*#*.*# ##### # ##### # #.*.*.*.# # $ $ # ####### # $ $ # ####### #*.*.*.*# # $ # #*.*.*# # $ # #*.*.*# #.*.*.*.# ## $ $ ###.*.*.# ## $ $ ###.*.*.# #*.*.*.*# #$ $ # *.*.*# #$ $ # *.*.*# ### ### #@$ $ .*.*## #@$ $ .*.*## # # #$ $ # *.*.*# #$ $ # *.*.*# ###### ###### ## $ $ ###.*.*.# ## $ $ ###.*.*.# # # # $ # #*.*.*# # $ # #*.*.*# # $ $ $ $ $ # # $ $ # ####### # $ $ # ####### ## $ $ $ $ ## ##### # ##### # #$ $ $ $ $# #### #### # $@$ # # ##### # #### ####
Original Level 49 All variants (left) Boxxle 1 Level 66 (middle) Perfect Level 167 (right) These puzzles are identical.
#### ######### #### # ## # ## # # ## # ## ### $ # # ## # $$ ## #### @$ ##$## # $$ ## ###$ $ ## ### #### ### # ###$ $ ## #### $ # # $ # #.*..# # #### $ # ### # ##### # # # $ ....# # ### # ##### # # # #....$ # # # #....$ # # # #....$ # # # $ ....# # ### # ##### # # # $ ....# # # $ # #.*..# # #### $ # # $ # #.*..# # ### #### ### # ###$ $ ## ### #### ### # #### @$ ##$## # $$ ## #### @$ ##$## ### $ # # ## ### $ # # ## # # ## # ## # ######### #### #########
Original Level 50 Color Computer, MS-DOS, Apple II, Commodore 64 (top left) Original Level 50 XSokoban (top right) Boxxle 1 Level 103 (bottom left) Color Computer, MS-DOS, Apple II, Commodore 64 and Boxxle 1 are identical. Color Computer, MS-DOS, Apple II, Commodore 64 and Boxxle 1: Box at column O, row 4, and Wall block at column P, row 13. XSokoban: Box at column P, row 4, and Wall block at column Q, row 13. XSokoban: Wall block removed from column O, row 8.
############ ############ #### ###### ##.. # # ##.. # # # # # ## ##..* $ $ # ##..* $ $ # # ### ## # ##..*.# # #$ ## ##..*.# # # $## #$ # # # # #..*.# # # $ # #..*.# # # $ # # $# ##### # ####...# # # # ####...# # # # # $ # # ##### # ## # # # ## # # ###$$ # # # # # # @$ $ ### # # ## # @$ $ ### # ## # $ $ # # # # $ $ # # # # $ $ # # # # @$ $ ### # # ## ###$$ # # # # # ###$$ # # # # # # ## # # # $ # # ##### # $ # # ##### ####...# # # # # $# ##### # # $# ##### # #..*.# # # $ # #$ # # # # #$ # # # # ##..*.# # #$ ## # ### ## # # ### ## # ##..* $ $ # # # # ## # # # ## ##.. # # #### ###### #### ###### ############

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Boxxle 1 (109)

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Boxxle 2 (120)

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Perfect

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