Nan or -1 (test 5) for non clue cells ?
Thanks for the catch. I've updated that test case.
Now, the biggie. Implement a solver for advanced FAP. I never managed to create one that worked on all problems.
I was working on it last night, but it's tabled for now. I can't quite figure out how to solve the advanced logic portion that propagates along adjacent clues (including diagonal) to solve cells outside of that clue's reach.
Good problem but too difficult for a first contact. Maybe a first basic problem with small boards and/or clear cues (0/9). And after only, a more difficult one.
If anyone is interested more in these games, I've made quite a few of them on Sporcle.com. for the first of four Fill-a-pix (aka, mosaic logic puzzle) playlists.
the fly, the train, the second train, and their Zeno's paradox
System of equations
Find best placement for ordered dominoes (harder)
03 - Matrix Variables 6
Find out total non zero element of matrix
Stress-Strain Properties - 4
Fraction of a fraction of a ...
Scrabble Scores - 4
Rule of mixtures (composites) - reverse engineering
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