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Show HN: Scroll through all 43252003274489856000 Rubik's Cube states

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Re: Show HN: Scroll through all 43252003274489856000 Rubik's Cube states

#23

Post by eurleif »

purplemoonx wrote: post #22

[flagged]

With all due respect to Steve, under 1 minute isn't that impressive. You can get there just by doing the beginner's method (a handful of different move-sequences) rapidly. The people who really study Rubik's Cube algorithms in depth can do it in a few seconds.

Re: Show HN: Scroll through all 43252003274489856000 Rubik's Cube states

#26

Post by opan »

purplemoonx wrote: post #22

[flagged]

>How did the kid who could solve the Rubik's Cube in under 1 min not become an algorithm designer - some genius backend dev?

Somebody else figured out the algs. The speedcubers just rote memorize them and then practice becomes mostly about execution. (Oversimplifying a little, but I have gotten sub-60 myself with the Roux method a few years ago)

Interestingly I've never managed to pick up programming but learned the cube pretty well (as an adult), and my programmer friend can't seem to figure out the cube at all even with me giving him extra help on top of linking materials I learned from. I suspect it's a very different skillset and we're both weak in one area.

Re: Show HN: Scroll through all 43252003274489856000 Rubik's Cube states

#27

Post by purplemoonx »

eurleif wrote: post #23
purplemoonx wrote: post #22

[flagged]

With all due respect to Steve, under 1 minute isn't that impressive. You can get there just by doing the beginner's method (a handful of different move-sequences) rapidly. The people who really study Rubik's Cube algorithms in depth can do it in a few seconds.

Hahah what are you doing here???

I had a friend - David - he could do it insanely quick. He's basically who I am thinking of in my post since he was also a genius at guitar, and could play beautifully. And he taught me basic PHP.

We spent a lot of time on your site on random Friday nights (him playing guitar) hahah, good times.

More of a yo-yo guy myself. I could walk the dog, pendulum, what-have-you. Around the world if I'm feeling saucy

Also: Gross, wtf happened to it???? If you can't say publicly, just blink 3 times

Re: Show HN: Scroll through all 43252003274489856000 Rubik's Cube states

#28

Post by zamadatix »

avandekleut wrote: post #20
nzealand wrote: post #17

It took Ernő Rubik four years to develop the cube. He immediately scrambled it, then spent the next month figuring out if it could be solved. Luckily no one told him there were 43 quintillion valid combinations.

Solved theoretically? I figure you could at least intuit that reversing all the moves in the scramble in reverse order would solve it.

The above makes everything sound very intentionally done towards the end result. He came about making the cube for finding ways to tackle the engineering challenge of building a device which moves in such levels if freedom, ended up scrambling it, and then spent a month figuring out how to treat the scrambled state as a puzzle to be solved. Messing with it gave him insight into just how complex a puzzle it was and the rest goes from there.

Re: Show HN: Scroll through all 43252003274489856000 Rubik's Cube states

#29

Post by purplemoonx »

opan wrote: post #26
purplemoonx wrote: post #22

[flagged]

>How did the kid who could solve the Rubik's Cube in under 1 min not become an algorithm designer - some genius backend dev? Somebody else figured out the algs. The speedcubers just rote memorize them and then practice becomes mostly about execution. (Oversimplifying a little, but I have gotten sub-60 myself with the Roux method a few years ago) Interestingly I've never managed to pick up programming but learned the…

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