Solution code: Row 4 and column 4, no spaces. Example: 123456789987654321
on 7. December 2021, 20:56 by 10feet
It solves fine, but the break-in with givens on the arrows isn't very elegant. It also doesn't really need any set theory to solve so that mostly just confused things and led to dissatisfaction. There is some nice logic in the middle, but just think this could have used some refining.
on 6. December 2021, 21:40 by wilsig
Did not use Phistomephel
on 6. December 2021, 20:34 by PinkNickels
Nice! 17:45 for me. Tough tho.
on 6. December 2021, 05:43 by Will Power
The question is, did you figure out what the title means, and did you use the information? Also, how did you like the concept? Thanks.
on 6. December 2021, 04:41 by henrypijames
Pretty soon Phistomefel's gonna seek royalties for the usage right of his name... :D