David W. Skinner
What is Sokoban?
Sokoban is a logic game consisting of sets of puzzles or "levels"
to the example shown above. It is not a video game and does
require quick reflexes nor does it involve blasting aliens to bits.
Sokoban means warehouse keeper in Japanese. The player pushes
(balls, crates or money bags depending on the version) to their correct
destinations in a crowded "warehouse". The puzzles range from very
to extremely difficult ones requiring many hours of brain work.
The game was invented in Japan and won a computer game contest
The original program was written by Hiroyuki Imabayashi and is
(c) 1982 by THINKING RABBIT Inc. JAPAN. Since then, many other versions
of the program have been written and additional sets of puzzles have
created. Many of these may be found by searching the internet.
My Sokoban sets:
I have created many original sets of Sokoban puzzles (as of September
2010, 1061 puzzles). To use
you must first obtain one of the many Sokoban programs available. My
sets are available here in text format. Click on a set, then
it as a text file for use in your Sokoban program.
My sets are in two groups: Sasquatch
and Microban. These sets may
distributed provided they remain properly credited.
Occasionally I get email from someone who is convinced that a
puzzle is impossible. Be assured that (except for unfinished sets) ALL
general collections where I've
tried to explore a wide variety of puzzle types. Set one has been
described as generally of
just the right difficulty to be fun: not too easy, but (usually) not so
hard that you get frustrated. Later sets tend to vary more in
difficulty (some quite difficult).
In sets one through four, puzzle size is limited to 31x18. If you like
huge levels several may be found at the end of each set starting with
Each Sasquatch set contains 50 puzzles.
II (August, 1999)
III (June, 2000)
IV (March, 2001)
V (December, 2001)
VI (October, 2002)
VII (June 2004)
VIII (March 2008)
IX (April 2009)
Sasquatch XII (8 puzzles, October 2010, this set is unfinished)
The Microban collection is good for beginners and
Most of the puzzles
are small and illustrate a particular concept. More experienced
should also find them interesting, since there is a wide variety and
many can be surprisingly tricky at first glance.
Microban sets contain
levels of the following types:
1. Small levels which demonstrate one or two concepts.
2. Levels which are easier than most Sasquatch levels.
3. Levels which are smaller and simpler versions of other levels.
4. Large levels which contain only one object. Use the mouse to place
the object on its destination, then sit back and watch the computer do
all the work. These are I-154, I-155, II-132, II-133, II-134, II-135,
III-101, IV-101, IV-102.
Sometimes it is hard to decide whether a level should become a
Sasquatch level or a Microban level, but I try not to worry about it
too much. :-)
puzzles, April, 2000)
II (135 puzzles, April, 2002)
III (101 puzzles, December 2009)
to new Microban puzzles, this set incorporates those which I had
for Aymeric Du Peloux's LOMA project. For more info see Aymeric's
LOMA page. Some LOMA puzzles may be a little harder than most
Microban puzzles but they are small.
IV (102 puzzles, August 2010)
This set includes a series of alphabet puzzles.
(26 puzzles, October 2010, this
set is unfinished)
Note - Mas Sasquatch and Mas
Microban have been renamed
II and Microban II. I had been
studying Spanish when I originally named them and thought the names
sounded cute at the time. I have changed my mind.
Note - The original Sasquatch
set, released in 1999, was revised in 2010. Puzzles #15 and #49 were
changed slightly to make their solutions less trivial. Puzzle #31 was
replaced with an entirely new puzzle. A much improved version of the
original #31 already exists elsewhere in the Sasquatch series.
A new type of Sokoban developed during the first week of January
It all started when I created the first "hexoban" puzzle and challenged
programmers to create a program on which to play it. Check it out at my
David W. Skinner
Grandview, Washington, USA
Email me if you desire to correspond about Sokoban, comment on my
or just declare your existence.
Visit my personal home page.
Several puzzles are displayed below.