TH13TEEN
(Published on 13. September 2025, 13:13 by IcyFruit)
Place a digit from 1-7 in each cell. Each digit must appear exactly once in each row, column, and box, except for the digits 1 and 3, which may appear any number of times.
Every 1 and 3 must be part of at least one adjacent pair of cells which reads as '13' either from left to right or from top to bottom.
Digits in a cage do not repeat (including 1 and 3) and sum to the total shown in the top left corner.
Solution code: Column 5
Comments
on 15. November 2025, 06:39 by tesseralis
Very tricky but very elegant, with lots of novel deductions. I liked this a lot!
on 7. October 2025, 05:58 by etoler
I have no idea what I just solved, but it was absolutely genius. Possibly in a mad scientist sort of way, but definitely still genius.
on 6. October 2025, 23:08 by Mennoo_
Absolutely wicked puzzle!
Tried it few days ago but got stuck. only needed a small hint from Simon's CtC solve about b9 to be able to continue. I guess I was warned not to go down the woods alone haha.
But genius puzzle, the work on the 13s is absolutely brilliant and mindblowing. Great setting!
On Personal note, love to see that you finally found a way to relate the puzzle ruling to the coaster name. Great job!
on 20. September 2025, 20:49 by Ramez
This is a diabolic puzzle... Solve at your own risk!
on 14. September 2025, 00:55 by Exigus
Damn that was hard, have to admit to a little bit of bifurcation. Very nice though. Thanks!
on 13. September 2025, 22:57 by Fool on Hill
This is a great puzzle. It was hard to solve first time through, and messed with my scanning. But when I walked through it with the things I had learned from my original solve it was definitely tough but fair. You have to be alert, though, because the rules and cages have implications which are not immediately obvious. The deviant rules are appropriately devilish (given the title).
