This implementation of Sokoban borrows some navigation ideas from XSokoban ( http://www.cs.cornell.edu/andru/xsokoban.html), the classic Unix/X-Windows implementation.
The artwork for this implementation comes from the computer game Wyvern (http://www.cabochon.com), which is copyright © 1998-2005 by Cabochon Technologies. The artwork may only be used with permission from Cabochon.
Sokoban was invented by Hiroyuki Imabayashi, and is copyright © 1982 by Thinking Rabbit. The game has become one of the most popular puzzle games of all time, and fans have created thousands of new levels.
Java and the Java Virtual Machine are registered trademarks of Sun Microsystems. See http://java.sun.com for details.
This code was written from scratch by Steve Yegge in February 2005. I hereby release the code to the public domain, and you may do as you like with it, provided you honor the copyrights of Sun Microsystems, Thinking Rabbit, Cabochon Technologies, and XSokoban.