Loopy Circles
(Published on 9. September 2025, 22:33 by Scojo)
Rules:
- Normal sudoku rules apply: Place the digits 1-9 once each in every row, column, and 3x3 box.
- Draw a 1 cell wide loop through the centers of some cells. The loop only moves orthogonally and cannot branch or touch itself, even diagonally.
- A digit in a circle on the loop indicates how many circles on the loop contain that digit. Similarly, a digit in a circle off the loop indicates how many circles off the loop contain that digit.
- Black dots separate digits where one is double the other. Additionally, exactly one cell touching a black dot is on the loop, and the other is off the loop.
- White dots separate consecutive digits. Additionally, the two cells touching a white dot are either both on the loop, or both off the loop.
- Not all dots are necessarily given.
Solve in SudokuPad
Solution code: Row 4
Solved by SKORP17, Joyofrandomness, blueberrypug, lmdemasi, Snookerfan, zeniko, bansalsaab, Franjo, TripleABattery, PierreTombal, Piff, Sotehr, Tacocat, wenchang, juggler, MalkoMann2, AAAAAAAAAAAAAAAAAAA, flyjim, majestic spork, hurrdurr
Comments
yesterday, 09:29 by juggler
Best counting circles puzzle I've solved in ages! Really beautiful logic in this one.
yesterday, 05:26 by Tacocat
Quite challenging but with constant difficulty and steady progress. Very enjoyable from start to finish, thank you very much!
on 10. September 2025, 14:36 by Franjo
Incredible setting, gorgeous puzzle! Thank you very much for creating and sharing.
on 10. September 2025, 10:09 by Snookerfan
Fabulous puzzle! Looks daunting at first, but is set so well, that it is surprisningly approachable when you are familiar with the different rules. Thank you
on 10. September 2025, 04:37 by blueberrypug
Very nice!! lovely puzzle
