WCA puzzle rule concerning center cubies

[panda]

3j) Puzzles must be clean and must not have any textures, markings, elevated pieces, damages, or other differences that distinguish one piece from a similar piece.

my best 3x3x3 has black rubik's pieces and green type D center pieces. it looks basically like a black cube with green centers. is this legal in competition? only the centers are distinguished...

 

[masterofthebass]

It must be legal, because the 5x5 WRs are set on a cube similar to that. Black cubies with white centers. As long as all of the centers are the same, you should be fine.

 

[Swordsman Kirby]

I've seen it done countless times in competition.

 

[AvGalen]

you quoted the correct rule and that says it all. Only centers are different from edges and corners which is allowed because of the wording "one piece from a similar piece"

 

[Bryan]

I would probably just post this in the official WCA forum and see what response you get there.

 

[Cerberus]

wtf? I just realised that rubiks storebought cubes are illegal... because one of the centers got a rubiks text out of plastic on it and you can actual feel it when you just got stickers on it... so rubiks storebought need tiles?

 

[TomZ]

wtf? I just realised that rubiks storebought cubes are illegal... because one of the centers got a rubiks text out of plastic on it and you can actual feel it when you just got stickers on it... so rubiks storebought need tiles?

That doesn't give you an advantage. Just by looking at the three centers, you can determine which which colours the others are without looking at them. You can barely feel it anyway.

 

[AvGalen]

wtf? I just realised that rubiks storebought cubes are illegal... because one of the centers got a rubiks text out of plastic on it and you can actual feel it when you just got stickers on it... so rubiks storebought need tiles?

... That doesn't give you an advantage.

Yes it does, especially for blind solving.
Maybe that is the reason that Rubiks/Seven Towns/Jumbo/etc allows (and even sponsors) competitions were all brands are allowed

 

[Kian]

if someone can't tell which side is which when they're blind solving without touching a center piece they're in a lot of trouble either way.

 

[Cerberus]

just think of M2 ;-)
I think there it gives you some improvement to know if you got the center on U or D

 

[mati rubik]

so, it's legal a cube with green centerpices, black cubies (edges) and white cubies (corners)
it's funny

 

[Vulosity]

I just dropped my V5 and a corner got a dent. The rule said if the cube is damaged, it can't be used.