Ten loop
(Published on 12. April 2024, 19:14 by palpot)
Thanks to Scojo for the inspiration for this puzzle! as this puzzle was set for their weekly prompt.
I think this puzzle is somewhere between 2 to 3 star difficulty. Comments about the puzzle or its difficulty are highly appreciated.
Rules:
Normal sudoku rules apply. Place the digits 1 to 9 in each Row, Column, and 3X3 box.
Draw a one-cell-wide loop of orthogonally connected cells. The loop may not touch itself, not even diagonally. The loop acts as a Ten line, i.e. the loop must be divided into one or more contiguous groups of cells that each sum to 10. These groups of cells cannot overlap.
Digits in a quadruple clue must appear in the four surrounding cells at least once.
The loop must enter exactly one of the four cells surrounding each quadruple clue, and this cell (the cell that is both part of the loop and part of the quadruple) indicates the number of loop cells in its corresponding 3X3 box.
Solve online: SudokuPad
Solution code: Row 7 digits from left to right.
Comments
on 27. July 2024, 17:12 by wuc
Very nice. Approachable break in. But took me some time with the tens. Felt 2.5 star to me. Really great setting thx.
on 16. April 2024, 11:07 by meatbox
I found the loop easily enough, but the rest was a grind, had to keep backtracking after spotting my mistakes. Enjoyable, but I was happy to finish!
on 15. April 2024, 10:01 by nearestneighbour
Very nice and approachable! Felt amost like a "build your own" sudoku
on 15. April 2024, 08:43 by AppleSaws
This was really fun! Stayed interesting all the way through, and had lots of neat stuff going on.
on 14. April 2024, 19:50 by fitzie
what an epic puzzle. it really felt like doing two entirely different puzzles.
on 13. April 2024, 13:06 by okchill
Really really nice. This deserves a higher rating considering it manages to be both interesting and accessible. Good stuff, palpot!
on 13. April 2024, 12:55 by palpot
Thank you all for the nice comments!
on 13. April 2024, 03:07 by brightonsimon
Loved this. I'm a fairly new solver and with this puzzle it never seemed too tricky to know where to look next, but I still had to stop and think what to do when I got there. Very satisfying!
on 12. April 2024, 22:07 by yttrio
Really cool to see another quad-based loop puzzle, and the 10 line deductions were interesting but never too tricky. Great puzzle!
on 12. April 2024, 20:19 by gdc
Very approachable and smooth. thanks!
on 12. April 2024, 19:54 by sujoyku
Thank you for this fun puzzle, palpot! I often struggle a little when attempting path-drawing puzzles, but this one was thoroughly enjoyable.
