On Dec 15, 2008, at 9:19 AM, peter / rubyrailways.com wrote:

> Is it possible to post a solution already? (I guess the question is
> poetical, just strange that no one posted one yet - was it so hard,  
> or no
> one has time amidst the pre-XMas craze, or... ?)

Perhaps a little harder than it may appear, or as you suggest, people  
may be busy. In the worst case, a brute force solution should be easy  
to do.

I may try this later today, or tomorrow, once I'm done with the last  
papers I need for school and some other errands.