If my over-use of str2num has in any way caused offense, I hereby beg leave to apologize.
My hat's off to you for such a solution. I'm baffled as to how to decode it (pun intended). I know that there has been a lot of furor over the use of regexp and other string-based functions, conversions, etc. to lower solution sizes for problems in general, but this problem is string-based, so I see no problem in solving it via arcane string methods.
495 Solvers
387 Solvers
Square Digits Number Chain Terminal Value (Inspired by Project Euler Problem 92)
170 Solvers
44 Solvers
574 Solvers
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