[PAC] Triple Japanese Sums
(Eingestellt am 24. Oktober 2025, 19:01 Uhr von The Book Wyrm)
This puzzle was created for the third round of the Puzzle Agent Championship (PAC) setting tournament. The prompt was to create a puzzle that involves dividing the grid into three orthogonally connected areas.
Rules:
- Divide the grid into three orthogonally connected areas.
Further divide each area into orthogonally connected 9-cell regions.
Place a digit from 1-9 into each cell. - Digits cannot repeat in a region.
Within an area, digits cannot repeat in a row or column. - Clues outside the grid give the sum of continuous runs of cells in the same area, in order.
? represents an unknown digit (numbers may not have leading 0s).
* represents an unknown amount of clues, including none.
If clues are given for a row/column, all clues are given for that row/column. - A digit on an arrow gives the number of cells in the same region seen in the indicated direction (including itself), where region borders block vision.
For aditional clarity an example of a valid grid has been given.
Penpa link: Click Here
Sudokupad link: Click Here
Lösungscode: Row 8
Kommentare
am 6. November 2025, 09:10 Uhr von MagnusJosefsson
Fantastic!
am 5. November 2025, 18:59 Uhr von kamkam
Very hard but beautiful puzzle. Deserves its 5 stars. The end was brutal.... almost gave up doing the sudoku part
am 3. November 2025, 05:51 Uhr von wildbush7
Amazing, I didn't feel any single deduction was unfair but there are plenty of chances to overlook a possibility. Definitely the high end of 5* difficulty for me. Loved it!
am 2. November 2025, 04:15 Uhr von Montinox
Mind blowing! Loved it!
am 31. Oktober 2025, 02:57 Uhr von Playmaker6174
Cool twist on regular Jsum, with some touch of brilliant madness as expected from yours! I didn’t actually struggle so much on this but being cautious throughout helped a lot, especially for certain parts of the solve x)
am 27. Oktober 2025, 23:27 Uhr von Piatato
Great fun, thanks!
am 26. Oktober 2025, 23:10 Uhr von The Book Wyrm
I posted the wrong version by accident, apologies for any inconvenience. Fairly small change, only affects the last part of the solve.
am 24. Oktober 2025, 22:15 Uhr von Christounet
Awesome puzzle, loved it ! Thanks :)
am 24. Oktober 2025, 21:58 Uhr von Agent
Great new twist on Japanese Sums, I loved the geometric arguments in this one!
am 24. Oktober 2025, 21:08 Uhr von The Book Wyrm
Fixed example image
am 24. Oktober 2025, 19:49 Uhr von JustinTucker
Shouldn't the 5th column of the example read 8 5 10 6?
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You are correct, the example has now been updated.
am 24. Oktober 2025, 19:17 Uhr von yttrio
One of the highlights of the round for me! Quite challenging, but some brilliant ideas throughout!
