The world’s fastest Rubik cube solver is made from Lego(successfulsoftware.net)
successfulsoftware.net
The world’s fastest Rubik cube solver is made from Lego
http://successfulsoftware.net/2012/10/10/the-worlds-fastest-rubik-cube-solver-is-made-from-lego/
17 comments
Why QuickTime?
I wanted to understand why it doesn't work every time, but I don't want to install another plugin just for a single video.
Because that is the format my compact camera takes. Sorry.
I see. Could you possibly upload to youtube or vimeo? I tried streaming using vlc and it's still too slow.
I have updated the post with the videos hosted on Youtube.
HTH
HTH
Thank you! Amazing videos! I think around 0:04, the front and rear arms twisted the cube without the right and left arm holding it.
didn't run on my ubuntu, but pics look great!
Fastest robot cube solver. The time is slightly better (5.27s vs 5.66s) than the world champion human solver but taking into account that it sometimes fails (due to hardware, which is the fail shown, don't know if the sw fails, too) the average solve time may be larger.
The world record for average solve time (over five solves) is 7.56 seconds. I think 5.66s is abnormally fast I think.
Here's a video of the 5.66s solve: http://www.youtube.com/watch?v=3v_Km6cv6DU
Here's a video of the 5.66s solve: http://www.youtube.com/watch?v=3v_Km6cv6DU
Not bad, 5.27 seconds!
The fastest human, Felix Zemdegs, is 5.66 seconds... https://www.youtube.com/watch?v=3v_Km6cv6DU
The fastest human, Felix Zemdegs, is 5.66 seconds... https://www.youtube.com/watch?v=3v_Km6cv6DU
Note that this comparison isn't even fair. Humans will be given the cube and are given time to inspect it and solve it in their mind before actually starting the clock and moving the sides of the cube. On the other hand robots have their clock start as soon as they start inspecting it.
Question: is there an agreed upon starting position of the pieces when having these types of competitions? Ie, both the robot and the human had to solve the exact same problem?
Thanks
Thanks
I would assume in these cases it is not the same starting position. A competition like that could be done, but the reality is that it doesn't matter. The way this robot and the fastest human speedcubers solve the cube is most likely very similar and either based on the ZB[1] or original Fridrich method (sometimes refereed to as F2L)[2] method of solving which requires the use of 100s of different algorithms. Because of this, solutions will usually take a similar amount of time and require a similar number of moves to solve the cube.
[1] http://www.zborowski.republika.pl/expert3x3x3method.html [2] http://www.speedsolving.com/wiki/index.php/Fridrich
[1] http://www.zborowski.republika.pl/expert3x3x3method.html [2] http://www.speedsolving.com/wiki/index.php/Fridrich
In Rubik's cube competitions I think you solve the cube 10 times, and then the fastest and slowest times are dropped and the remaining 8 are averaged together, and that's how they get those times. It's not perfectly fair, since the starting permutations are different for different contestants, but it does a good job at figuring out who the fastest solvers are.
> the starting permutations are different for different contestants,
This seems silly, why? Because they don't solve simultaneously so there is a risk of information leakage?
This seems silly, why? Because they don't solve simultaneously so there is a risk of information leakage?
This must be the same group that made the first Cubestormer a couple of years ago. This one looks even more incredible.
I think this is the exact kind of thing that would get 10 year olds excited about math, science, and engineering. :)
YouTube clip with some background from the designer and developer: https://www.youtube.com/watch?v=cHXTEBihbN8