Skewb
The Skewb (/ˈskjuːb/) is a combination puzzle and a mechanical puzzle similar to the Rubik's Cube. It was invented by Tony Durham and marketed by Uwe Mèffert.[1] Although it is cubical, it differs from the typical cubes' construction; its axes of rotation pass through the corners of the cube, rather than the centers of the faces. There are four axes, one for each space diagonal of the cube. As a result, it is a deep-cut puzzle in which each twist affects all six faces.
Mèffert's original name for this puzzle was the Pyraminx Cube, to emphasize that it was part of a series including his first tetrahedral puzzle, the Pyraminx. The name Skewb was coined by Douglas Hofstadter in his Metamagical Themas column. Mèffert liked the new name enough to apply it to the Pyraminx Cube, and he also named some of his other puzzles after it, such as the Skewb Diamond.[2]
In December 2013, the Skewb was recognized as an official World Cube Association competition event.[3]
Mechanism
[edit]The Skewb's pieces are divided into subgroups and have several constraints. The eight corners are split into two group. The four corners attached to the central four-armed spider and the four "floating" corners that can be removed from the mechanism easily. These corners cannot be interchanged i.e. in a single group of four corners, their relative positions are unchanged. A floating corner can be distinguished by squishing down when applying pressure to the corner. The centers only have two possible orientations, seen by scrambling a Skewb-like puzzle where the center orientation is visible (such as the Skewb Diamond or Skewb Ultimate), or by disassembling the puzzle.
Records
[edit]The world record single solve is 0.75 seconds, set by Carter Kucala of the United States at Going Fast in Grandview 2024.[4]
The world record average of 5 (excluding fastest and slowest) is 1.52 seconds, set by Carter Kucala of the United States at CubingUSA Heartland Championship 2024, with times of 1.65, 1.45, 2.57, 1.37, and 1.45 seconds.[4]
Top 5 solvers by single solve
[edit]| Name[5] | Fastest solve | Competition |
|---|---|---|
 Carter Kucala |
0.75s | Going Fast in Grandview 2024
|
| Zayn Khanani |
0.81s |  Rubik's WCA North American Championship 2022
|
| Simon Kellum |
0.85s | Going Fast in Grandview 2024
|
 Antoni Stojek
|
0.88s | Cube Factory Brzeziny 2024
|
 Manuel Prieto de Antón |
0.88s | Baztan Open 2023
|
Top 6 solvers by Olympic average of 5 solves
[edit]| Name[6] | Fastest average | Competition | Times |
|---|---|---|---|
| Carter Kucala |
1.52s | CubingUSA Heartland Championship 2024 |
1.65, 1.45, (2.57), (1.37), 1.45 |
| Dominic Redisi |
1.53s | Rubik’s WCA North American Championship 2024 |
(2.05), 1.63, 1.43, 1.52, (1.07) |
| Zayn Khanani |
1.56s | Pretzel Mania 2022 |
1.30, (1.20), 1.79, 1.60, (4.89) |
| Brayden Wroten |
1.77s | Rocky Mountain Championship 2023 |
1.80, (1.30), (2.32), 1.65, 1.85 |
 Vojtech Grohmann
|
1.78s |  Rubik's German Nationals 2024
|
1.78, 1.93, (2.39), 1.64, (1.32) |
See also
[edit]References
[edit]- ^ "Tony Durham Mechanical Puzzles". The Metagrobologist. Retrieved September 22, 2020.
- ^ "Jaap's Puzzle Page, Skewb Page". Jaap's Puzzle Page.
- ^ "Add Skewb. Resolves issue #102. · thewca/wca-regulations@66d6da9". GitHub. Retrieved 2021-01-26.
- ^ a b World Cube Association Official Results - Skewb
- ^ World Cube Association [1]
- ^ World Cube Association [2]
External links
[edit]- Birgit Nietsch's Skewb page
- Jaap's Skewb page
- Kirjava-Meep Skewb Method proposed by Thom Barlow and Kristopher De Asis.
- Sarah Strong's Skewb Method with variations for all skill levels.
- Rubik'skewb solution by Hideki Niina.
- Ranzha's Skewb Method by Brandon Harnish.