Hofstadter's Metamagical Themas contends that there are 2 solutions.

Oddly enough, I came across a similar problem in a Lewis Carrol puzzle book. It was phrased as follows: 

_____________________
|0|1|2|3|4|5|6|7|8|9|
---------------------
|_|_|_|_|_|_|_|_|_|_|

[download]
The trick was to self-document the bottom row with one digit in each box. That is, the top row wasn't included in the count. The reason I bring this up is that your use of 12 seemed to rub me the wrong way (I like the idea of just single digits in each case). Whether such a solution exists for the Hofstadter variant (that is, where the top row is counted as well) is conditional on one of our programs finding the other solution.



Code is (almost) always untested.
http://www.justicepoetic.net/

In reply to Re: Re: Improving Evolutionary Algorithm (no code?(spoiler)) by jweed
in thread Improving Evolutionary Algorithm by jweed

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