Rubik's Cube Algorithm Cut Again, Down to 23 Moves 202
Bryan writes "The number of moves necessary to solve an arbitrary Rubik's cube configuration has been cut down to 23 moves, according to an update on Tomas Rokicki's homepage (and here). As reported in March, Rokicki developed a very efficient strategy for studying cube solvability, which he used it to show that 25 moves are sufficient to solve any (solvable) Rubik's cube. Since then, he's upgraded from 8GB of memory and a Q6600 CPU, to the supercomputers at Sony Pictures Imageworks (his latest result was produced during idle-time between productions). Combined with some of Rokicki's earlier work, this new result implies that for any arbitrary cube configuration, a solution exists in either 21, 22, or 23 moves. This is in agreement with informal group-theoretic arguments (see Hofstadter 1996, ch. 14) suggesting that the necessary and sufficient number of moves should be in the low 20s. From the producers of Spiderman 3 and Surf's Up, we bring you: 2 steps closer to God's Algorithm!"
I still can't do it. (Score:5, Funny)
That's quick (Score:5, Funny)
Re:I still can't do it. (Score:5, Funny)
I can do it in one .... I outsource it.
Re:That's quick (Score:3, Funny)
Try spray paint.
I can always do it.... (Score:5, Funny)
Re:That's quick (Score:5, Funny)
This would definitely faster than my method of taking it apart and reassembling it in the correct order.
LET THERE BE THREE moves... (Score:3, Funny)
2. Let Dry
3. PROPHET
Re:I still can't do it. (Score:5, Funny)
Re:Solvable? (Score:5, Funny)
Re:I still can't do it. (Score:5, Funny)
I can do it in one .... I outsource it.
I can solve it faster .... I defenestrate [merriam-webster.com] it.
I can do it in 2... (Score:4, Funny)
Re:I still can't do it. (Score:5, Funny)
Please, disregard the previous sentence.
Please, disregard the previous sentence.
Re:LET THERE BE THREE moves... (Score:4, Funny)
Only one move required... (Score:5, Funny)
There, saved you from another 22 pointless moves.
Re:I still can't do it. (Score:4, Funny)
When I was a kid I had a rubix cube which one day resulted in this,
Angry Kid + Teacher(target) + Rubix Cube = defenestrate + one half rubix cube + dozens little pieces of a cube.
Afterwards I felt pretty bad about the whole thing...
Re:I still can't do it. (Score:5, Funny)
Re:Solvable? (Score:3, Funny)
It is pretty annoying when people do the sticker trick to only solve one side of a cube.
Re:That's quick (Score:5, Funny)
Easy (Score:5, Funny)
Step 1: Drop cube in can of paint. Done.
Re:Solvable? (Score:4, Funny)
Re:Easy (Score:2, Funny)
1 Drive to Home Depot
2 Buy bucket and paint
3 Drive back home
4 Open the paint enclosure
5 Drop paint into bucket
6 Clean the floor
7 Clean yourself
8 Drop the cube
9 Pickup the cube
10 Realize that white paint won't make it look solved
11 Drive back to Home Depot
12 Buy a new bucket and dark paint
13 Drive back home
14 Open
15 Drop
16 Clean yourself (you actually learned not to mess the floor)
17 Drive to Toys-R-Us
18 Buy another Rubik's cube
19 Drive back
20 Drop the cube
21 Pick it up
Solved!
Do the math, quick! (Score:5, Funny)
And here I used to think my method was faster; but since there's more than 23 stickers on the cube I guess it ain't any more...
So that would be, um, each face is three by three, um, nine stickers on each face. Then multiply that times the number of sides, so six times nine would be, uh, ...
Forty two.
Re:Easy (Score:1, Funny)
Step 3: Profit!
Re:I still can't do it. (Score:4, Funny)
my best time -1 min (Score:5, Funny)
Re:I still can't do it. (Score:4, Funny)
Re:Or... (Score:5, Funny)
Re:Do the math, quick! (Score:3, Funny)
It's 42.
Trust me.
Re:Easy (Score:3, Funny)
Paint is so 1987. Sears now sells powder coaters for $150.
There is nothing that can't be improved with a little powder coating. Pencils, silverware, desks...
Re:I still can't do it. (Score:5, Funny)