Lego Rubik’s Cube Robot World’s Fastest


A recent video of the “Worlds Fastest Lego Robot” devouring randomized Rubik’s Cube puzzles, in a fraction of the time it would take most humans to complete the devilish contraptions, has captured the imaginations of large numbers of Japanese:

The robot is of course described as being built entirely from Lego elements:

Whether or not the Rubik’s Cubes are truly as randomized as suggested aside, it truly does appear to be an impressive work of robotics…

Some other similar videos can be found at CubeStormer’s Youtube page.

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    Avatar of alex251
    Comment by alex251
    16:11 20/02/2010 # ! Neutral (0)

    Eh, the timer is disappointing - not geek enough - everyone here knows how it should look like :) Someone should tell them :)

    PS: 1) the SW for the brick recognition is totally simple - it's not a problem to recognize some colored rectangles and when you even know their positions
    2) the solving SW isn't a problem either - if a standard human (not an autist) can solve it in a few seconds (using some known technique - that you can find on the Internet) then it's not such a problem for a robot/computer either.

    Comment by Anonymous
    07:53 20/02/2010 # ! Neutral (0)

    I just ran a games convention (in Australia) where we had a Rubiks cube comp.
    The human winner did it in about 8 seconds.

    According to the organiser of the comp, there is (at most) about 24 moves to restore any randomised cube to "clean", once you see the pattern, you apply the correct formula and it is then just a matter of movement. I saw the winner playing with cubes afterward... he was solving a cube, one handed, without looking, in about 10 seconds.

    The robot must have the patten recognising program installed, then it knows the set moves that it needs to make.

    I am impressed, but would be more impressed if it was a robot that pulled off the stickers, and re stuck them the way all us normal people do to solve the dratted cubes.

    Avatar of ImBZppl
    Comment by ImBZppl
    07:49 20/02/2010 # ! Neutral (0)

    you know it could just be a video played backwards of a robot scrambling a cube...
    and the timer could have just been a countdown played backwards too
    I can never trust online videos...

    Comment by Anonymous
    12:07 20/02/2010 # ! Neutral (0)

    Doesn't really matter. The impressive part about the video is the robotics.

    I could probably write a solving algorithm for a rubics cube myself, assuming someone else would do the optical recognition part of the software for me, given I have no experience on how to tackle the latter part. Can't be much harder than writing a Sudoku solver for the solving function itself.

    Solving rubiks cubes algorithmically isn't very difficult. Building the robot is the hard part.

    So it doesn't matter wether or not the robot -solves- the cubes, the fact that it can quickly scramble a cube like that is impressive enough by itself. Or are you suggesting the robot itself is faked, too? :p

    Comment by Anonymous
    09:39 20/02/2010 # ! Neutral (0)

    I believe he input all possible patterns to this robot
    how many is that?

    Anyway, this robot ROCKS !!

    Comment by Anonymous
    11:47 20/02/2010 # ! Neutral (0)

    I doubt that, considering there are 43,252,003,274,489,856,000 permutations. He probably programmed it the same way speed cubers go at it.

    Comment by Anonymous
    10:50 20/02/2010 # ! Neutral (0)

    the robot is cheating, it got 4 robo-hands lol. Human got 2 D:

    Avatar of Y10NRDY
    Comment by Y10NRDY
    17:03 20/02/2010 # ! Neutral (0)

    i have a friend that speed solves these freaking things. i guess the algorithm is fairly simple but it's still pretty impressive.

    Comment by Anonymous
    22:29 21/02/2010 # ! Neutral (0)

    one more useless invention, people are strange... (c) but really it's completely useless =(

    Comment by Anonymous
    16:09 23/02/2010 # ! Neutral (0)

    Yes, for some. it is seldom surprising that robotics - in this case, with the combination of Lego bricks - could solve a Rubik's cube.

    For the hardware part, Lego bricks are made in such a way that they readily assemble without the need for glue or screws, probably with the exception of the movable parts.
    The program shouldn't be so difficult for a person familiar with basic programming. The trick is to discover the mechanics and logic of solving a Rubik's cube.

    The most impressive part would be a person actually DOING it and proving to humankind that it is possible, on top of other inventions of the inventor. For this, the inventor has my praise.

    Avatar of man1
    Comment by man1
    16:12 23/02/2010 # ! Neutral (0)

    Crap, accidentally logged out. ↑ Mine. ^_^

    Comment by Anonymous
    11:44 22/02/2010 # ! Neutral (0)

    A robot is the fastest at something? *gasp* What a surprise!

    Comment by Anonymous
    11:37 22/02/2010 # ! Neutral (0)

    Read the title and took a glipms at the picture and the first thing I thougt
    "What is this some Lego LHC?"
    then I saw the RubixCube and was dissapoint.

    Comment by Anonymous
    04:03 21/02/2010 # ! Neutral (0)

    Na, all the video is a shop

    Comment by Anonymous
    16:10 21/02/2010 # ! Neutral (0)

    But can you sex it?

    Comment by Anonymous
    13:27 21/02/2010 # ! Neutral (0)

    finnaly!!! the human race is safe now!!
    get a life

    Avatar of Icy-nee-san
    Comment by Icy-nee-san
    00:02 20/02/2010 # ! Neutral (0)

    Man I can just imagine the instructions for this :P

    Avatar of Templa
    Comment by Templa
    23:37 19/02/2010 # ! Neutral (0)

    We're programming these lego mindstorm robots at school, we also had a project to present on the open day of our upper classes at school. Quite easy to program these, but for this you need more than one NXT.

    Avatar of g0dslay3r
    Comment by g0dslay3r
    00:17 20/02/2010 # ! Neutral (0)

    its made from the mindstorm,maybe i can make one

    Avatar of alex251
    Comment by alex251
    01:05 20/02/2010 # ! Neutral (0)

    Nice, but wake me up when they made an EVA :)

    Avatar of patokite91
    Comment by patokite91
    01:19 20/02/2010 # ! Neutral (0)

    sorry, the gundam has the priority

    Avatar of alex251
    Comment by alex251
    06:08 20/02/2010 # ! Neutral (0)

    but the EVAs can beat the Gundams... :)

    Avatar of alex251
    Comment by alex251
    16:44 20/02/2010 # ! Neutral (0)

    A gundam prototype unit is already invented:

    Avatar of alex251
    Comment by alex251
    16:01 20/02/2010 # ! Neutral (0)

    Cheating...Everyone who see it for the first time thinks it's a robot, so why not make a full robotic version (like Jet Alone) :)

    Comment by Anonymous
    10:43 20/02/2010 # ! Neutral (0)

    Sure, but tell me when you get an angel to make an EVA out of.

    Comment by Anonymous
    19:51 21/02/2010 # ! Neutral (0)

    Now we ghet: Which is the better mech? Gundams or EVAs.... Yup a flamebait....

    Now remember that there is a real Gundam in Odaiba and no EVA whatsoever.....

    Avatar of Ray
    Comment by Ray
    01:11 20/02/2010 # ! Neutral (0)

    God damn Skynet is making the first move. First rubik's cubes, then humanity... =(

    Comment by Anonymous
    01:07 20/02/2010 # ! Neutral (0)


    Robots like this could have been made with the technology of the 90's as well. Sad to see it as something amazing in 2010.

    Comment by Anonymous
    01:36 20/02/2010 # ! Neutral (0)

    What's amazing is that it's built using a Lego Mindstorm by some guy with time in his hands and knowledge in programming this thing!

    Comment by Anonymous
    22:49 19/02/2010 # ! Neutral (0)

    "Love & support Michelle Dobson" How cute^^

    Comment by Anonymous
    22:31 19/02/2010 # ! Neutral (0)

    I suddenly thought of what it would be like if this became a Transformer

    Avatar of GAOO
    Comment by GAOO
    21:23 19/02/2010 # ! Neutral (0)

    Cool :) I can solve Rubik's Cube only in about one minute so far. I really should learn the Fridrich method.

    Avatar of CC
    Comment by CC
    21:11 19/02/2010 # ! Neutral (0)

    Guess the software writer is pretty good at solving them as well by now ;)

    Avatar of churn
    Comment by churn
    10:58 20/02/2010 # ! Neutral (0)

    Nah, you guys have been misinformed.

    Solving the cube is way algorithmic and the methods are easily learned. Anyone who can solve a cube at all can do it under 2 minutes. Anyone can lower their time to about 50 seconds with a little practice.

    Past that, it's knowing when to apply advanced algorithms (easy for a machine), cube awareness (being able to keep track which piece is where; a machine can easily remember, and can have multiple sets of "eyes"), and last but not least, dexterity, where the machine easily trumps the human.

    In reality, solving a cube requires little or no thought (unless it's your first time and you have no guide).

    Avatar of Reizo
    Comment by Reizo
    11:56 20/02/2010 # ! Neutral (0)

    Yeah, solving a Rubik's cube is just memorizing algorithms. Not as hard as it's been made out to be.

    Comment by Anonymous
    19:49 21/02/2010 # ! Neutral (0)

    Nothing like math to solve rubik and build robots....

    Avatar of CowExtract
    Comment by CowExtract
    01:22 20/02/2010 # ! Neutral (0)

    yeah, a program's only as smart as it's programmer

    Avatar of CoreFlood
    Comment by CoreFlood
    07:10 20/02/2010 # ! Neutral (0)

    i'm kind of curious how he did it, looking at it just as it is, recursion would be the ideal way to go but thinking about the speed i can't help but be curious what he used if not that :3

    Avatar of churn
    Comment by churn
    10:59 20/02/2010 # ! Neutral (0)

    It's a linear set of steps.

    Avatar of DFC
    Comment by DFC
    21:09 19/02/2010 # ! Neutral (0)

    BUT CAN IT SOLVE 4x4x4 cubes??

    Comment by Anonymous
    05:25 20/02/2010 # ! Neutral (0)

    A 3x3 cube at any given time can have (3x3x3)!/24 combinations. A 4x4 cube on the other hand has (4x4x4)!/24 configurations. The difference is 64x63...x28x27/24. And that's only combination per step, combinations in series would be much greater. Again, this is more conservative estimation using a brute force method. But it does show the level of complexity goes up by a lot when you increase the number of elements in a set.

    Comment by H-Ero
    21:08 19/02/2010 # ! Neutral (0)

    I wish my lego robot could solve rubik's cubes like that. Mine just rearranges the stickers.

    Avatar of Yoshii-kun
    Comment by Yoshii-kun
    23:49 19/02/2010 # ! Neutral (0)

    I suddenly thought of Terminator: the Sarah Connor Chronicles... o.O

    And Judgment Day advances to the next stage... =D

    Comment by Anonymous
    16:57 20/02/2010 # ! Neutral (0)

    Terminator made from lego ? now that interesting

    Comment by Anonymous
    19:50 20/02/2010 # ! Neutral (0)

    They really are unstoppable, blow one apart and they'll just piece themselves back together.

    Comment by Anonymous
    01:13 20/02/2010 # ! Neutral (0)

    Reminds me of the Large Hadron Collider.

    Avatar of CoreFlood
    Comment by CoreFlood
    07:08 20/02/2010 # ! Neutral (0)

    honestly does it not remind you guys of that giant ring thing in the 1997 movie "Contact"?

    I'd link a screenshot but for the life of me i can't find a decent picture of the thing. but i swear it looks close D:

    Comment by Anonymous
    19:02 20/02/2010 # ! Neutral (0)

    So you're saying, while we're seeing the cube solved in 10 seconds, the machine actually took 18 hours??

    Comment by Anonymous
    07:07 20/02/2010 # ! Neutral (0)

    Reminds me of the Large Hardon Collider.

    Comment by Anonymous
    11:43 20/02/2010 # ! Neutral (0)

    I've got my LHC right here.

    Comment by Anonymous
    17:07 21/02/2010 # ! Neutral (0)

    Where's your God now?

    Avatar of Ichiro Ino
    Comment by Ichiro Ino
    Comment by Anonymous
    09:33 22/02/2010 # ! Neutral (0)

    Unlimited Lego Works XDDDDDDD

    Comment by Anonymous
    11:33 22/02/2010 # ! Neutral (0)

    Give your son a set of playmobil and a set of Lego.

    He takes the Lego:
    Congratulations your son might bring it to something in his life

    He takes the playmobil:
    Is your son mental handicaped.
    Not? I got some bad news for you.

    He went to his sisters room playing teaparty with her dolls:
    I got some bad news for you.

    Comment by Anonymous
    17:21 20/02/2010 # ! Neutral (0)

    yay someone is using lego for the plural of lego.

    I hate it when people say something like, "I made this out of legos!" then I question their intelligence.

    Avatar of Shanyy
    Comment by Shanyy
    01:31 20/02/2010 # ! Neutral (0)

    I wish I had one million Lego.

    Comment by Anonymous
    19:47 21/02/2010 # ! Neutral (0)

    TNinja..... That is pure genius....

    Well if we ever hear of Fate/Stay:Lego....

    Avatar of Darkrockslizer
    Comment by Darkrockslizer
    19:39 20/02/2010 # ! Neutral (0)

    I want a building instruction for this one.

    Avatar of TNinja
    Comment by TNinja
    22:20 20/02/2010 # ! Neutral (0)

    I am the bone of my lego.
    Plastic is my body, and cubes are my blood.
    I have solved over a thousand cubes.
    Unknown to death, nor known to life.
    I have withstood pain to solve many puzzles.
    Yet, these hands will never hold anything.
    So as I pray.
    Unlimited Lego Works.

    Seriously, I haven't touched lego in years, and when I see them again, I find out that they have become a genius rubic solving machine.

    Comment by Anonymous
    14:35 21/02/2010 # ! Neutral (0)

    The threat to humanity is not Skynet! It's Lego!

    Comment by Anonymous
    04:44 20/02/2010 # ! Neutral (0)

    I wish I had a Leg....

    Comment by Anonymous
    04:39 20/02/2010 # ! Neutral (0)

    Limited lego works...

    and spray I do!

    Comment by Anonymous
    05:09 20/02/2010 # ! Neutral (0)

    >02:54 20/02/2010
    hehe, and I've got this one:

    Comment by Anonymous
    02:54 20/02/2010 # ! Neutral (0)

    i wish i has a rubik's cube

    Comment by Anonymous
    02:57 20/02/2010 # ! Neutral (0)

    And so I pray...
    Unlimited lego works !

    Comment by Anonymous
    04:43 20/02/2010 # ! Neutral (0)

    Ha, I built a coin sorting machine with mine.

    Avatar of obro
    Comment by obro
    05:03 20/02/2010 # ! Neutral (0)

    Really? I always wished my LEGO robots would shoot lasers and rockets.You sir are modest.

    Comment by Anonymous
    07:57 20/02/2010 # ! Neutral (0)

    Really? I always wished my LEGO robots would become human-sized, leave my room, and go off to work in the world of Real Estate.

    Avatar of Frederica Bernkastel
    03:04 20/02/2010 # ! Neutral (0)

    Just buy Lego Rubik's Cube Robot from them. Can't be that expensive :/

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