Nob's H-2-O


by Nob Yoshigahara

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Eight identical coins are arranged in the H letter shown in the upper left corner.

Can you convert the H letter into the O letter shown in the lower right corner observing one simple rule: move one coin at a time so that in its new position it touches at least two other coins from the unmoved group, except the case when this coin (marked as @) makes a straight line triad, like O@O.

Posted: November 4, 2009
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