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sexy look Powered By Immense KnowledgeScientists unlock the secrets
of the Rubik's cube
Friday, August 17, 2007

Remember the Rubik's Cube? That little box of multi-coloured squares
that you could only complete by carefully steaming off all of the
stickers and then re-sticking them in the right positions?

A team of US scientists has used a powerful number-crunching
supercomputer to work out that the minimum moves needed to complete a
Rubik's Cube from any starting position, is 26, one less than the
previous record.

In reaching this figure Daniel Kunkle and Gene Cooperman from
Northeastern University in Boston developed algorithms that can be
useful for all kinds of different applications from scheduling air
flights to determining how proteins will fold.

Scroll down for more...

The Rubik's cube was a huge success in the 1980s - despite the
frustration it caused

As a Rubik's Cube has approximately 43 billion billion
(43,000,000,000,000,000,000) possible positions it would have taken
too long for even the most powerful supercomputer to work through all
of the different configurations.

So Kunkle and his advisor Gene Cooperman developed some clever
mathematical and computational strategies to make the puzzle more
manageable.

They programmed the supercomputer to arrive at one of 15,000 half-
solved solutions. They knew they could fully solve any of these 15,000
cubes with a few extra moves.

The final results showed that any disordered cube could be fully
solved in a maximum of 29 moves, but that most cubes could be
completed in 26 moves.

Many mathematicians still believe that it should take only 20 moves to
solve any Rubik's cube, but no one has been able to prove this theory
yet.

Failing that, a steaming kettle and some deft fingerwork should do the
trick.

At this year's Caltech 2007 competition American Rubik's Cube expert
Dan Dzoan broke the world record for one-handed cube-solving by
completing one in an incredible 17.9 seconds.

Labels: unbelievable

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hey cool i usuale solve rubicks cube 3 or 4 or 5 minutes but one tme
i solved rubicks cube one minute and 12 secounds cause the way it
was mixed i did not have to do all 5 steps

the middle part jESUS help me learn that move:)
and my gym teacher learn from the book simple soultion to rubicks
cube that i handed him then he showed me then i pratied and the
rest is history
ideal solionh and mastering the cubeboks and simple sloution i gave my
gy tearcher mr lower and the smple sution was easy for him and once i
learn from that book i under stood idea slotution i never trued to
d master the cube book

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