UPDATED 03/03/2013.
There is now a huge
Gallery of my whole collection.
There are new pages on
the Ai Cube,
2×3×4,
3×4×5,
4×4×5,
4×4×6,
Two-Colour 4×4×6,
Diamond Dilemma,
Helicopter Cube,
Curvy Copter,
Nautilus,
Polydron Enigma,
Slide Rule Pie 3,
Slide Rule Pie 6, and
Super Brain Spinner.
and I added the
Flat Diamond Cube to the
Rubik's Cube Variants page.
There are some neat new results about Lights Out on a torus on the
Lights Out Mathematics page.
Last but not least, there is a new article about
Bandaged Puzzles and PSPACE-completeness.
UPDATED 28/10/2012.
I added a new page on
Rubik's Cube Variants, containing the
Void Cube,
Shephard's Cube,
Egg Cube,
Heart Cube,
Oval Cube,
Mastermorphix 1,
2,
3,
Rhombic Dodecahedron Cube.
Nine Colour Cube, and
Labyrinth Cube.
There are also new pages on
1×2×5 Gari Garikun Puzzle,
Bolaris,
Pentahedron,
Quarter Turn Cube /
Constrained Cube 90°,
Square 2,
Izzi 2,
Kabalabda,
Instant Indecision, and
7×7 Oktató Játék.
I updated the
Frustr8tor page with a
javascript simulation of the new version of the puzzle, and added the
Gear Mastermorphix
to the
Gear Cube page,
and the
Rudenko Matryoshka,
Rudenko Clips and
Rudenko Disk
to the
Towers of Hanoi page.
I also added patents for the
Code Breaker /
Twisting Rings Puzzle,
Cubedron,
Butterfly,
Flip-Side,
SphereXyz, and
Dodek Duo
to the
Patents page,
and analysis of Alien Tiles and some other additions to the
The Mathematics of Lights Out page.
UPDATED 06/05/2012. Added new pages for
Crazy 2×3×3,
Culica,
Delta Ball,
Gear Shift,
Latch Cube,
Leesho,
Magic Rainbow Ball,
Mind Jewel,
Moeraki Nr. 3, and
Moeraki Nr. 4.
I also added
Minus Cube to the Varikon Box page,
Four Colour Swissmad to the Swissmad page,
The Great Pyramid to The Great Pyramid Pocket Puzzle page,
calculated God's Algorithm for the
Dual Circle, and
Rotascope,
and created a neat diagram of the rectangular positions of the
Rubik's Magic.
Added javascript simulations of
Culica,
Leesho,
Moeraki Nr. 3, and
Moeraki Nr. 4.
There are new Java applets that let you play
Lights Out on a Graph,
and
Circle Puzzles,
I improved the
Polyform puzzle Applet and finally I wrote a page about
Computational Group Theory.
These pages and scripts are written by Jaap Scherphuis, © Copyright 1999-2013. It is a non-commercial site.
Some of these puzzles may be trademarked. This site is not derived from, associated with, or endorsed by the holders of such trademarks.
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