There is just one way to go from XXXXOOOO to XOXOXOXO in five moves if *three* adjacent coins are moved at each turn. How?

As an aside, does move include flipping 3 adjacent coins too..if yeah, here's the alternative,

X - heads, O - tails (Bold denotes the coinsi shall be flipping)

XXXXOOOO

XOOOOOOO

XOXXXOOO

XOXOOXOO

XOXOXOXO

4 moves is all dats needed.

 

 

Posted by Rajat on 2004-10-27 15:29:44