Which cube sizes are competition legal?

[Aaron Lau]

Hey guys! Was just wondering if any size of cubes are competition legal. Would be great if u wud reply!

 

[theROUXbiksCube]

I think all are.
50 55 57 etc.

 

[Eduard Khil]

I think yes, as long as it is similar in size to the standard ones. No pillows, no thick stickers, no textured stickers etc

^Yeah 45, 50, 55, 57 mm will work fine
But i dont think youd get good times with a 30mm (If you have small fingers) nor a 180 mm (Unless youre doing feet)

 

[newtonbase]

The regs say something like "any reasonable size".

 

[Aaron Lau]

Ok thanks guys. And what about colours? Are all colours legal too? I heard the stickerless is illegal.

 

[pdilla]

All sticker colors are fine, so long as the 6 colors are distinguishable from each other such that a completed cube can be distinguished from a scrambled cube (aka, they all must be different shades).

Also colored plastic is fine, so long as the entire cube's plastic is that one color. A multicolored cube (aka, a stickerless cube) is illegal because of this:

 

[pdilla]

Ok thanks guys. And what about colours? Are all colours legal too? I heard the stickerless is illegal.

All sticker colors are fine, so long as the 6 colors are distinguishable from each other such that a completed cube can be distinguished from a scrambled cube (aka, they all must be different shades).

Also colored plastic is fine, so long as the entire cube's plastic is that one color. A multicolored cube (aka, a stickerless cube) is illegal because of this:

You can see the back colors from the front.

 

[Aaron Lau]

I see...

Anyway, thanks for all the feedback. Really appreciate it.

 

[Lucas Garron]

The regs say something like "any reasonable size".

A citation turns hearsay to fact. ;-)

3a+) CLARIFICATION Competitors may use puzzles of any reasonable size, at the discretion of the WCA Delegate.

 

[Tony Fisher]

Hey guys! Was just wondering if any size of cubes are competition legal. Would be great if u wud reply!

Olivér Nagy used one of those 18cm Rubik's Cubes in the 2015 Dutch Open. It was painted black since they are normally stickerless.

 

[Sub20MinSolver]

so could you bring a subatomic 3x3 and use it for competition?

 

[Lucas Garron]

so could you bring a subatomic 3x3 and use it for competition?

Probably not.

3a2) Puzzles must be fully operational, such that normal scrambling is possible.
3d) Puzzles must have coloured parts

 

[Ryp]

No pillows

What about concave?

 

[qqwref]

He might be talking about this. But yeah, any size of functional cube is OK, as long as it won't break while it's being scrambled/solved.