Welcome to the Sliding Block Puzzle Page. Here, you'll have the opportunity to see and play some sliding block puzzles that otherwise may be difficult or impossible to find without having to build them yourself!

First and foremost, on behalf of all puzzles solvers, I'd like to thank the puzzle designers. In particular, I'd like to acknowledge Minoru Abe for being the inspiration for this entire site.

All modern puzzle designs are used with permission of the manufacturer or designer; all rights are reserved.  Also thanks to Binary Arts for permission to reproduce their commercial puzzle designs and packaging. Scans of Minoru Abe puzzles were taken from the collections of Nick Baxter, Jerry Slocum, Dick Hess, Edward Hordern, and Stan Isaacs.

Minimum move counts and puzzle designer names are given where known. I am particularly indebted to Edward Hordern for the information found in his authoritative book Sliding Piece Puzzles. All puzzles that appear in his book are indexed by serial number; more information about these puzzles, particularly historical information, can be found there. (Edward passed away in early 2000; click here for a few brief comments and a puzzle dedicated to his memory.)

Robert Henderson has completed an extensive computer analysis for most of the puzzles on this site.  Move counts shown with a question mark (?) are not verified as minimal. Noel Dillabough recently found a 227-move solution to Climb Pro 24 using a cluster of 16 2.4Ghz P4 computers; this was not shown to be minimal.

Other move counts are taken from miscellaneous published sources and from reported improvements (thank you Junk Kato, Bob Henderson, Joe Turner, Bas de Bakker, Jim Leonard, Justin Leck, Daniel Błażewicz, and Edward Hordern). Please contact with any updates, or requests to implement new puzzles.

If your browser can display the Java Console, you can see the internal log which includes all of your moves. This will be useful if you want to keep track of your moves once a puzzle is solved. It can be activated under the View menu for Internet Explorer 4.x/5.x, but only after turning it on in your Internet Options, and under the Communicator menu for Netscape Communicator 4.x.

Many thanks go to Hirofumi Fujiwara for sharing his original Java source code. Please visit his web site where you will find some additional sliding block puzzles to play. Thanks also go to Goh Pit Khiam, the original author of the Rush Hour Java applet.

Last but not least, a big thank you to John Rausch for hosting this site along with the rest of his "Puzzle World"!! 

1998-2007 by Nick Baxter