New : medium (twice the size of small puzzles, 7-15 cm) and large Puzzles (25-40 cm) now available!

    

MAX Board Game & Puzzle

    - it's a puzzle with a wealth of challenges when played as a solitaire shape-filling game
    - it's a board game that entertains the whole family
 
 

NUTTS Puzzle - a wealth of tricky problems to challenge the best puzzlists
 
 
 

THE (ALMOST) IMPOSSIBLE CUBE - It will stun everybody you know
 
 

 WASHER PUZZLE - for the technically minded puzzlists...
 
 
 
 
 
 

• CAPETOWN solitaire game (click here to see software version) - currently not available - looking for manufacturer

"A Puzzling Journey To The Reptiles And Related Animals"
"NUTTS And Other Crackers"  (purchase of book includes free NUTTS puzzle!)

"NEW MOSAICS" - new tiling challenges and their beautiful solutions (about 1000 diagrams!)

To read some of the book online and for content list and ordering click here. 

ACHTUNG! Jetzt auch als Ebook erhältlich! Kaufen/ Auszüge lesen:  Smashwords Verlag (alle Formate),  Amazon Verlag (Kindle)

Online Galleries:
   Gallery 1 :  Karl's small gallery (framed pictures): Room 1 Room 2  Room 3 Room 4  Room 5 Room 6  Room 7
   Gallery 2 :  Karl's Main Fractal Gallery  be amazed! (over 100 pictures; mirror at http://www.y23.com/fractal//)
   Gallery 3 :  Karl's large art gallery at the German art company "Kunst-Fuer-Alle"

Photos and infos:

•    Big German Newspaper prints one of Karl's Fractals
  
•    More Info on Public Exhibitions, Photos
•    Technical description of how fractals are produced 

 

My 600+ ZILLIONS games -  free to download

               (you need the inexpensive Zillions CD for that, which you can get here) 
        
  Free Mathematica "Demonstrations" and Gallery

• Convex Tilings (using congruent parts)
• A few difficult dissections
• NOWHERE-NEAT Tilings of the Plane 
  
• Square The Square  - a simple tiling problem, beautiful solutions, and two general theorems
• Square The Rectangle  - a simple tiling problem, over 1000 solutions, and two general theorems  
• Tetrads
  
• Triangulating the plane with mutually different regular triangles - impossibility theorem
  

• A-Maze
• Dissecting convex shapes into congruent parts
  
• Connect the dots
• Cryptic Crossword Puzzles
• Everyone should have a (check-) mate
• Globetrotter Maze
• Retro Chess Problems
• Straightjacket Chess World Record: What is the longest sequence of  forced moves in chess?
• The Quartercircle Heritage
• The Touching Flat Polycubes Problem
• Wireworld    (Zillions game Wireworld)
  
• Word & Math problems

Miscellaneous

• About the inventor
• On inventors, inventions, tips and tricks
• House Insulation   Do something for the environment - insulate your house!
• Our Rainwater System! - installed parallel to city water, pays for itself in 10 years!
• Clean fun with my Kero 200 electric scooter - cheap to run and pollution free!
  
• IPP- The International Puzzle Party
• Scrabble
• Talks on tilings and math games at the University at Jena (Germany) 2006 : (German) (English)
  
• Zillions Art

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Note that those prices which are given in NZ$ are for delivery inside New Zealand only.
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