Get the top HN stories in your inbox every day.
infamousclyde
lemper
thank you for your service
noman-land
For anyone looking to dip their toes into speed cubing or cubing in general I highly recommend checking out a YuXin Little Magic.
https://www.thecubicle.com/products/yuxin-little-magic-3x3
The cube is only $6 (recently inflationed from $5) and it's one of the best cubes I've ever used. I have a stack of these sitting at home that I sometimes give to people who show an interest.
Incidentally, YuXin makes some very smooth and affordable larger cubes. Their 11x11 is insanely fun.
https://www.thecubicle.com/products/yuxin-little-magic-11x11
hbn
That's crazy they sell apparently decent 11x11 cubes these days.
I remember back when I was getting into cubing, late 07-early 08 and you could only get up to 5x5 cubes. Vcube had a website up for what seemed like forever (I was 10 so it may not be as long as my memory tells me) showing that they were going to be selling 6x6 and 7x7 cubes, and at some point it started feeling like vaporware and I thought maybe the site was just a viral stunt. But eventually they came out and I bought a 7x7 which I still have, and I thought it was so cool. It's still the biggest cube I have but it's not great to use because it was before a lot of modern cube tech advancements.
I'm not super hardcore into cubes, every few years I look online into what the zeitgeist is saying to find the best new 3x3 speedcube and buy one to keep on my desk and do E-perms while reading or watching videos. And a couple years ago I bought a decent 5x5 (looking at the email receipt, it's - YJ MGC Magnetic 5x5 - Stickerless) and I've had a lot of fun playing with that sometimes while listening to podcasts. Though it is prone to pieces popping if I'm not careful with my turns
saalweachter
I feel like the rise of 3d printing and the falling cost of rapid prototyping has to play a part here.
A giant Rubik's cube is the sort of thing that one person with a computer, a resin printer, and an obsession could design and test until it's ready to bring to market, and which is such a niche market that it'd be a terrible business decision to do it.
noman-land
I remember the VCube launches very fondly. I got the email and jumped from my chair and ordered both the 6 and 7 on the spot. The 6 was terrible and I've never liked pillowed cubes but i wore those things to the nub.
I'm so happy that large cubes are not only commonplace, but well made and affordable. I absolutely love my 7, 9, 11 and 13s.
And I still hate even-order cubes.
nsilvestri
MoYu RS3M 2021 is considered a better budget cube nowadays. Many people use it as their main, which is not something that can be said about the YLM.
dailykoder
I have the "MoYu Super RS3 M 2022" as maglev version and I love it. Can recommend!
I am not a "real speedcuber" tho. My average is about 40s, but it's a nice cube and I enjoy playing with it.
noman-land
Cool, I didn't know about this one. Looks awesome. But it's over twice as expensive! :)
nsilvestri
Ah, whoops, the 2020, not the 2021! Should only be $9 at the right place. In my opinion, the extra couple dollars are worth it :)
picozeta
Oh, another speed cube thread, some thoughts:
The method described here nowadays goes under the name of CFOP (Fridrich's page made it very popular, so in former days it was referred to the "Fridrich" method). It's still popular and got refined over the years, see this excellent comment in this thread: https://news.ycombinator.com/item?id=37430854
Another interesting topic is the question which (cross) color you choose: There are 6 possibilities (colors) and in the beginning even top solvers preferred one color (white is the most popular) to simplify recognition ("where are my pieces?").
Later, top solvers switched to "color neutral" solving, which in theory gives you more efficient crosses, as you can choose the color that gives you the shortest solution. There even seemed to be consensus that if you want to be at the top you had to be color neutral.
However even more recently this has been challenged and "dual color neutral" (only choosing between white and yellow) seems to be the way to go.
The reason is that during inspection (in competition you have 15 seconds to "inspect" the cube meaning to plan your solution (partly) ahead of time) the selection process to choose the best cross obviously takes some time. There's a trade-off between investing time to plan the cross (and additional blocks) in inspection and selecting the color that should be preferred.
xmprt
It's pretty wild seeing how off the estimates are and how far things have come since then. This page about limits lists the expected fastest average at 11 seconds and the best possible average at 5 seconds [1].
Today, the best solvers have gotten multiple sub 5 averages [2] and most good solves can get sub 11 second averages with practice. In fact most intermediate solvers can get sub 17 second averages with advanced cube technology (better turning speed and fewer lock ups). I've even seen a 2.35 second solve [3]
[1] http://www.ws.binghamton.edu/fridrich/hints.html#limits
[2] https://www.worldcubeassociation.org/results/rankings/333/av...
alkonaut
Cubes have probably advanced quite a bit, and the advent of social media now means that the kids just copy each others tricks within minutes these days. My kid and his cubing friends went down towards a 10s average between the age 10 and 12, so in about two years of active cubing. But having the head of a 12yo kid (and amount of spare time) is almost cheating. You can learn anything in 2 years. I'm sure they could have learned Mandarin instead in that time. But I'll take it over being really good at Fortnite which was the other option.
noman-land
It's boggling to me that 10-12 year olds are doing 10s averages. That's so cool. For many years it was a dream of mine to get sub20. Never got there.
shilangyu
The world record average is 4.48s and it's held by... a 9 year old.
pjc50
Yeah, this is the sort of thing I would assume can only be really mastered as children, like a lot of sports, and falls off after 21.
xmprt
Always fun seeing kids at competitions doing these insanely fast solves with their tiny hands.
_giorgio_
Where should a complete beginner start from? Please suggest videos or tutorials...
Are the cubes all the same?
gwynplaine
I recommend learning from J Perm. https://jperm.net/ - also on Youtube https://www.youtube.com/@JPerm
Interestingly, the official Rubik's cubes are very poor quality.
I have a GAN speedcube and can recommend.
loup-vaillant
> Interestingly, the official Rubik's cubes are very poor quality.
Official Rubik’s cubes solve a different problem: being a good toy: sure they’re horrible to turn, but they also they never explode, can’t corner-twist, and can even survive being thrown into a wall.
That being said, I would never recommend this brand to any one above 12.
kazinator
Newer Rubik's cubes are not horrible to turn at all, other than through the perspective of an elite, competitive speed cuber.
Rubik's cubes have a long history of being crap. They used to have crappy stickers that would peel off, and would explode. The newer ones don't explode.
You can definitely corner twist.
Modern Rubik's brand cubes have hidden screws under two of the faces (yellow and white, I think) where you can adjust tension to some extent.
kazinator
> the official Rubik's cubes are very poor quality
That used to be true but hasn't been for years.
The Rubik's branded cubes (e.g. that you can get a Walmart) now have decent, fast action and real plastic faces rather than stickers. They don't have the beveled inner corners for the smoothest action, but are usable.
I've seen YT videos of people solving them in 20 seconds or less.
mlukaszek
Came here to also recommend J Perm videos. His way of explaining the solve clicked with me, and it was easy enough for my 11yo daughter to pick it up super quickly!
photochemsyn
The Ruwix wiki is really good. The complete beginner pages you'd want are:
https://ruwix.com/the-rubiks-cube/how-to-solve-the-rubiks-cu...
and, for learning about cube algorithms and the notation for cube algorithms (which relies heavily on getting familiar with counterclockwise/clockwise turns viewed from one stable orientation of the cube for all faces):
hooksfordays
As a complete beginner, you don’t need to spring for a $50+ cube magnet GAN some other comments are recommending. You’ll get just as far with a YuXin[1] as a beginner, or a Valk[2], which was my primary cube for over a year, and carried me under an 18s average time. There may be better middle-of-the-road cubes since 2016 though!
[1] https://speedcubeshop.com/collections/3x3-speed-cubes/produc... [2] https://speedcubeshop.com/collections/3x3-speed-cubes/produc...
exitb
Right here - https://www.youtube.com/watch?v=7Ron6MN45LY
Generally the difficulty of a method is driven by the number of "algorithms", or sets of moves, you have to memorise in order to move between states. The "beginner method" is not very fast, but doesn't require a lot of memorisation. One comfortable with that, you can build up on it and replace parts with faster moves.
_aavaa_
Surprised this hasn't been posted yet [0]. It's got some very useful and compact pdfs that you can print off with the algorithms you need.
bnycum
As someone who used that site forever ago to learn cubing algorithms, I was surprised to learn that Badmephisto is actually Andrej Karpathy (OpenAI, Tesla).
These days I prefer to use though: http://algdb.net/
_aavaa_
huh, TIL
ur-whale
> Are the cubes all the same?
Definitely not.
Get a GAN with built-in magnets, it'll get you far.
Beyond that, rabbit hole is right here: https://www.youtube.com/watch?v=j9mhOJflqgk
ilc
GAN's really fallen in recent years. There's a ton of good cubes out there, but unless you go back to the Gan 12, not worth it.
I haven't really turned a 3x3 for speed in a while.. but at the end I was using a Tornado V2, cheaper, and better than the Gan. Now there's better than that.
If you are interested watch the stuff from "The Cubicle" Phil does a good job of breaking down cubes and giving an honest opinion.
spikyllama
Since we're sharing speedcube recommendations, here's what I'd suggest.
As a beginner, get a MoYu RS3M 2021 (or one of the newer MoYu budget cubes). Watch the 10 minute tutorial by J Perm on YouTube, then watch RiDo's Hunting Story, it really improved my first 2 layers early on.
Once you approach sub-30, get a YS3M if you want to have a more controllable cube, or a WRM v9 if you want a faster cube, and get cube lube. If you're trying to get serious, invest in a SpeedStacks timer; it is a much better method of timing and it's used in competitions.
Also, go to competitions early on. It gives you a big motivator to improve. You can find competitions on the WCA website.
Good luck!
rwnspace
What a throwback. This was one of the few websites on speedcubing available back in 06/07. IIRC there are a few prescient sentences about advancements to cfop which came to life as seriously developed 'research projects' by 13/14 and nowadays fully utilised by the very fastest.
This is one of several competitive methods but it remains the most popular by far. I enjoy them all but the modularity and flexibility of cfop makes it my favourite and my home.
Thanks for the post.
ilc
If you can solve the cube, I'd encourage you to learn 3BLD. Or, solving a 3x3 blindfolded. Solving the cube was cool... Memorizing the cube and solving it and taking off the blindfold to see a solved cube, is really damn cool.
I remember my 1st attempt taking me 1/2 an hour to get a success, times have dropped, but it's been a while since I did it. I should fix that :)
noman-land
I've been working on 3BLD on and off for a while and it's amazing how with just a little training the feat does not seem so unattainable anymore. The technique is fascinatingly simple. I've successfully solved just the edges blindfolded and was beyond proud of myself.
I also learned that actively memorizing is extremely exhausting.
ilc
Work on the letter pairs. Have algorithms, do what works for you.
mattbruv
Any resources for learning Blindfolded 3x3? How long did it take you to learn it?
ilc
To first success? A month? Not sure.
The hard part is all up front. The first solve you do is the hardest, it took me 30m+.
I'd also recommend learning M2 over OP for edges. I used Noah's guide back when. M2 is so much faster, that unless you are going all the way to 3 style (which is a large jump) M2/OP is pretty optimal. If you've got more questions I'll try to scan every so often.
kuboble
JPerm's youtube tutorial should hey you started.
The OP (old Pochmann) is a super simple method. Learning 3bld if you can already solve a cube is actually less work then learning to solve the cube at first
patrec
Tangentially, it's Ernő Rubik (double acute accent), not Ernö Rubik (umlaut). The doubly acute accented ő is basically a long ö.
Jerrrry
Breakthroughs where the newest "zeta-slotting" technique and mathematical group theory are crossing may see sub-4 second averages to those savants skilled enough to optimally solve the needed corner-edge pairs and insert them while either subconsciously optimizing for the penultimate pair or just by getting lucky.
The first to do it will likely be another olympic-level skilled 10 year old kid with a knack for puzzles, honed hand-eye coordination, and a naturally high level sense of visual acuity and a decent understanding of either functional composition or a base intuition of group theory.
djmips
Total aside: it struck me as odd to post someone's signature online.
loup-vaillant
Speed cubing has advanced a lot in the last couple decades. The cubes have evolved like you wouldn’t believe, and the methods have been refined like crazy. World record average (5 solves, remove best and worst, do the arithmetic mean of the other 3) stands at 4.48 seconds. https://www.worldcubeassociation.org/results/records
The system described here is basically standard CFOP: Cross, First 2 layers, Orient last layer (OLL), Permute last layer (Pll). Though now most cubers don’t take advantage of the symmetry between algorithms, and instead do completely different algorithms for flipped cases. One reason for this is that most people aren’t perfectly ambidextrous, and the other is it can facilitate recognition.
The second most popular method, Roux, has also a lot of potential. Completely different from CFOP.
CFOP has been refined a lot. First the obvious: the cross is solved at the bottom, and so are the first two layers. That way you can better see the pieces that actually interest you: those that aren’t solved yet. And it saves you from flipping the cube over when it comes to solve the last layer. The first two layers are still solved mostly intuitively, but with a lot of tricks to make it faster, like pseudo slotting, key-holes… currently Tymon Kolasiński is the master of pseudo slotting, with extremely efficient F2L (and standing equal to him is Max Park, who is basically ambidextrous for this phase).
For the last layer there are also a lot of tricks, most of which requires recalling an ungodly amount of algorithms. Some are about inserting the last pair and orient the last layer (few cubers learn them all, but the set called "winter variation" is fairly popular). Sometimes the edges are already oriented, so we can orient and place the last corners (COLL), so at the end we only need to permute the edges (easier recognition, slightly faster algorithms than general PLL).
And then there’s ZBLL, from the ZZ method, where we start with edges already oriented, and we orient the corner and permute everything in a single algorithm. But there’s a crapton of algs to learn from, not even Tymon Kolasiński knows them all… well, one cuber does know them all (don’t recall his name, sorry), I believe his method to solve the last layer is to orient the edges at the same time he places the last F2L pair, then he goes ZBLL.
---
If you want to learn speed cubing now, I recommend https://cubeskills.com/ and https://jperm.net/ — or look up the Roux method if you don’t want to do like everyone else.
shilangyu
Roux while still very much an underdog is gaining popularity as the method for one handed (OH) solves. The 2023 world champion of OH used roux to gain this title. I even heard of cases where people that use CFOP are now learning roux to use it exclusively for OH solves. The main advantages of roux for OH are that it requires fewer moves, requires no cube rotations (which are awkward to do with one hand) and you can use the table to act as a second hand when performing middle layer slices.
foobiekr
I’m never going to be particularly fast - ~50s best measured time which may not be my best time - but I really love roux. It’s meditative, like cube Taichi.
noman-land
Roux is such a fun and relaxing solving style. J Perm's YouTube tutorials are also top notch.
mrklol
Are you always using the same method in tournaments or are there "scenarios“ where one is better than the other?
kuboble
You always use the same method. Some people experiment with being method neutral but the consensus is that's not worth the effort. Given finite amount of time for practice is better to master one method rather than two. And even if you could master more methods is not clear that given 15s inspection spending time for method choice is a good thing.
However you can use different methods in different events (e.g. for one handed).
And the notable exception is 2x2x2 where if you want to be the top competitor you basically have to learn all the methods. During the competition you search mamy solutions and pick up one you can execute fastest.
davidelettieri
Do you know any website where OLL and PLL algorithms are listed along with "setup" moves?
Get the top HN stories in your inbox every day.
Recently attending the World Championships for Athletics in Budapest, supporting my fiancée in the 5000m. I'm not super athletic myself, but one of the country's notable figures is Ernö Rubik, inventor of the Rubik Cube.
They had a social media thing going around where you could tag your country for a chance to get featured. From a 14 second PB in my youth, it was still pretty trivial to get somewhere in the 25-30 second range on the janky stock cubes they distributed to all the athletes. It was probably the most I did for Team Canada during that trip.