oliviervlcube
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- 4b3e) 5x5x5 Cube, 6x6x6 Cube, 7x7x7 Cube, and Megaminx: sufficiently many random moves (instead of random state), at least 2 moves to solve.
One-Answer WCA Competition and Regulations Question Thread
T1_M0
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Yes I read that and found it weird because bigger cubes have lower limits than smaller...
I'd assume the rationale for this part of the regulations is that it's possible to directly determine how many moves from solved a scramble is on 222/skewb/squan/pyra without a lot of computational power, but this isn't the case for other puzzles.
(Well, it's possible for 333 too, but super short scrambles are so improbable compared to easy-but-not-short scrambles that maybe it was deemed unnecessary to filter 333 scrambles beyond 2 moves.)
Kit Clement
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The chances of you winning the jackpot in a lottery game 10 times in a row are better than the odds of seeing a big cube scramble that has a solution <10 moves. There are no filters because it's not really necessary.
T1_M0
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Yup, that's clear
mark49152
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Why are the minimum move counts different? If a 4 move 2x2 result is valid why shouldn't a 4 move pyraminx solution be valid?
Ranzha
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Due to current world records being set at those movecounts, it would be unfair to the future of cubing to impose a higher movecount minimum.
Since 2x2 WR single is a four-move solution, setting the minimum to 6 moves would make it that much harder to beat WR.
M
Malkom
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probably has something to do with gods number on said puzzles.
CornerCutter
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The Tips might play a part too.
mark49152
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Makes sense, thanks. Is that true for skewb versus square one as well?
Ranzha
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Square-1, yes.
For skewb, the scrambling minimum depth was imposed as soon as it became official in 2014. The thought was that all positions depth <= 6 were few and trivial enough to exclude (iirc 2.3% of all cases?)
YouCubing
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also, the 11 moves on Square-1 include both ordered pair moves and slice moves, so a 5 slice alg with aufs on each end is legal, which i find very silly since the good U/U cases, many easy cubeshapes, 1 slice co into adj/adj EP or CP, etc are legal and easily sub1able so yeah
Diamond Cubing
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Is the transparent green MoYu AoLong V2 competition legal?
Jaysammey777
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Transparent cubes are illegal.
JustinTimeCuber
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Are the carbon fiber cubes legal (just wondering, not planning on using one lol)
too lazy to figure out the technicalities
too lazy to figure out the technicalities
Jaysammey777
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No, You can tell the colors of a piece by the orientation of the waves
JustinTimeCuber
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Right, didn't really think of that
To what extent are usually-illegal cubes allowed for FMC? For instance, a cube that is only partially stickered, or even completely unstickered, obviously isn't (and shouldn't be) legal for the speedsolving or BLD events, but for FMC?
The regs don't make a special exception for FMC, so that indicates that the answer is "they're completely illegal", but I also haven't seen judges checking the competitors' puzzles for legality at FMC attempts. Within reasonable limits, illegal cubes don't provide any advantage for FMC at all.
The regs don't make a special exception for FMC, so that indicates that the answer is "they're completely illegal", but I also haven't seen judges checking the competitors' puzzles for legality at FMC attempts. Within reasonable limits, illegal cubes don't provide any advantage for FMC at all.
Kit Clement
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You answered your own question regarding the legality of cubes in FMC. I also don't see an advantage to this, but that also means there isn't much of a reason to come up with a list of possible exceptions to FMC, which only makes the regulations unnecessarily messy. It's simple enough to find stickers to overlay on other pieces if you need to make markings.
While I don't go around and inspect each cube individually for FMC, I do tend to glance around the room and make sure each cube appears to be competition legal, while I make sure no competitor has more than 3 cubes.
One Wheel
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I understand that's the rule, and personally 3 seems like about the number I would want (I've never competed in FMC officially, just the forum comps), but is there a deeper logic than "seems like a good number" to limiting it to 3?
