Three Region Loop
(Published on 20. April 2026, 05:11 by mellowrobinson)
Normal Sudoku rules apply:
- Fill each row, column, and box with the digits 1-6 without repeats.
Extra Regions Loop:
- Draw a one cell wide orthogonal loop of cells which doesn't touch itself, even diagonally.
- A circle is on the loop, and counts the total number of loop cells it sees in its row and column, including itself, where non loop cells block vision.
- The loop is divided into exactly three connected chunks, and each chunk acts as an extra region which contains the digits 1-6 without repeats.
Digits in gray squares are even.
Solution code: digits on the loop in column 5, top to bottom
Last changed on on 20. April 2026, 23:47
Solved by Kirra, zonny, Andrewsarchus, onefeather, marajade, L00ping007, CHalb, redgecko, NEWS, MonsieurTRISTE, SKORP17, yttrio, HeyItsErin, Neumino, dingledork, THef of Time, pepe74287, teuthida, Phandor, firespire, sorryimLate, clamtrox
Comments
on 21. April 2026, 00:01 by yttrio
Some really nice logic in this one!
on 20. April 2026, 23:47 by mellowrobinson
Changed difficulty estimate
on 20. April 2026, 08:43 by onefeather
I found that a bit difficult because I missed a key part of the logic for a long time. Once I found it it was a very pleasant solve!
on 20. April 2026, 06:26 by Kirra
Wowee was that more difficult than i anticipated but wow was it fun.
