This should not work in general. It returns false-positive for consecutive 1 5 7 :-)
This should not work, but test suite only requires us to check for groups of three in columns.
Thanks for noticing that...I'll edit the test suite and fix that.
Maximum running product for a string of numbers
surface of a spherical planet
Count up then down
Max Change in Consecutive Elements
What digit is it?
Numbers in extended form
With apologies to William Blake
It's Happy! It's Fun! It's Happy Fun Hyperball!
Numbered lottery balls into cells
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