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Irreversible Cube

by Oskar Puzzles

Irreversible Cube 3d printed
Irreversible Cube 3d printed
Irreversible Cube 3d printed
Irreversible Cube 3d printed
Irreversible Cube 3d printed
Irreversible Cube 3d printed
Irreversible Cube 3d printed
Irreversible Cube 3d printed
Irreversible Cube 3d printed
Irreversible Cube 3d printed
Irreversible Cube 3d printed

DIGITAL PREVIEW
Not a Photo

Irreversible Cube 3d printed
Irreversible Cube 3d printed

DIGITAL PREVIEW
Not a Photo

Irreversible Cube 3d printed
Irreversible Cube 3d printed

DIGITAL PREVIEW
Not a Photo

Irreversible Cube 3d printed
Irreversible Cube 3d printed
Irreversible Cube 3d printed
Irreversible Cube 3d printed

DIGITAL PREVIEW
Not a Photo

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Choose a Material

Plastic

White Strong & Flexible Polished
White Strong & Flexible
Black Strong & Flexible
OVERVIEW
  • 3D printed just for you.
  • White Strong & Flexible: White nylon plastic with a matte finish and slight grainy feel.
$287.70
Secure Checkout

About this Product

Irreversible Cube is based on an idea by Christoph Lohe:
"It is just a 2x2x2 Cube, however, with the following constrains:
- only clockwise quarter turns are allowed
- after a turn on one axis (out of three), the next move, if any, will need to be done on another axis
Obviously, it is not a normal twisty puzzle as you cannot simply reverse your move sequence. It also means: the puzzle is already scrambled after a first single move from the solved state."

So if we encode
"U" = upper face 90 degrees clockwise
"F" = front face 90 degrees clockwise
"L" = left face 90 degrees clockwise
then one could legally turn e.g. "UFLUFLULUFLUFLUL" as all turns are clockwise and there are no two-same-turns-in-a-row. However, "FF" would be illegal and the second "F" move should be blocked.

Irreversible Cube exactly achieves Chris Lohe's goal. There are only single clockwise quarter turns, and any second quarter turn is blocked, only to be unlocked when another face is turned 90-degrees clockwise.

Note that the puzzle has no easy undos. Once a quarter turn clockwise has been made, one cannot undo it by turning anti-clockwise. Anti-clockwise turns are blocked by the mechanism.

Analysing the mechanism, the follow steps happen when turning a face clockwise.
1) First the turning face locks itself against turning back to it original position. From this point, one can only move forward.
2) Next the turning face unlocks the previously locked adjacent face.
3) Then, the turning face locks itself against turning back to the adjacent-faces-unlocking state.
4) Finally, the turning face blocks. Now it can only be unlocked by turning an adjacent face.

Watch the YouTube video.
Read at the Shapeways Forum.
Read more at the Twisty Puzzles Forum.
Read a solving analysis at the Twisty Puzzles Forum.

Please contact Oskar directly if you are interested in obtaining a fully colored, stickered and assembled sample of this puzzle.
What's in the Box
INCM

Irreversible Cube in White Strong & Flexible
Width Height Depth
7.658 cm 11.586 cm 6.176 cm
This model is 3D Printed in White Strong & Flexible: White nylon plastic with a matte finish and slight grainy feel.
Model version 2 | Last updated on 06/22/2015

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Choose a Material

Plastic

White Strong & Flexible Polished
White Strong & Flexible
Black Strong & Flexible
OVERVIEW
  • 3D printed just for you.
  • White Strong & Flexible: White nylon plastic with a matte finish and slight grainy feel.
$287.70
Secure Checkout

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