This is the place where I dump stuff that is not (or not yet) part of my puzzle page (Jaap's Puzzle Page).
Downloadable version of my puzzle page, excluding the patent pdfs and large gallery images: puzzles.zip (32.8 MB)
The puzzle patents: patents.zip (85.2 MB)
The gallery: gallery.zip (483 MB)
Rubik's Cube Scrambler for any size cube.
Rubik's Clock Scrambler
Rubik's Clock Scrambler, graphical version
Rubik's Ufo Scrambler.
Download all scamblers.
Sudoku generator. Fast generator/solver for various sudoku variants. A Java applet.
Tilings page. It has a Java applet with a catalogue of hundreds of tilings that I found which each use only one polygonal tile shape.
My YouTube channel. Some videos of mine, mostly magic tricks.
Here (600K wav file) is a voicemail message someone left on my mobile phone some time in 2002. It is in a kind of German, and rather funny.
I have an old nokia phone (6021), and have written programs for it. To install a program on a Nokia you need the PC Suite software.
Twister.jar, Twister.jad, Source Code. Puzzle game, like a 2d version of the Rubik's Cube.