Slitherpen
(Published on 8. March 2026, 20:05 by BakersDozenBagels)
Play it on Zinga!
Place a digit 1-9 in each cell such that no digit repeats in a row, column, or 3x3 box. Some digits have been given.
Additionally, draw a single loop along the edges of the cells such that:
- If a cell contains a 1, 2, or 3, then that many of its edges are part of the loop.
- Every 4 is inside the loop.
- Every 5 is outside the loop.
- No 2x2 square consists solely of cells inside the loop nor solely of cells outside the loop.
- The crossed-out edges are not part of the loop.
Solution code: Row 1 then row 2 (both from left to right), but only those cells inside the loop
Solved by Timwi, KusaneHexaku, FireTruckFuel, Joyofrandomness, dzamie, sehringdipity
Comments
yesterday, 20:14 by dzamie
Sudokupad link, since the Drawing tool is *super* helpful in this puzzle: https://sudokupad.app/5ii68pg898 (no solution checking)
That was a pretty cool way to combine these puzzles! I nearly got stuck towards the end before I remembered that numbers greater than 5 still existed.
yesterday, 02:31 by FireTruckFuel
@tryote I have no idea but if you choose two colors one representing "in" and one representing "out" you can use the border of the "in" cells as your loop.
yesterday, 01:39 by tryote
How does one draw loop segments in Zinga?
on 8. March 2026, 21:44 by KusaneHexaku
slink yinyang my beloved yippee :3
