Guillotine (Strict Killer Sudoku)
(Eingestellt am 3. Juli 2025, 23:25 Uhr von Feadoor)
An exercise in what happens if you take "digits cannot repeat in cages" too literally.
Normal Sudoku rules apply: place a number from 1 to 9 into each cell so that every row, column and box contains each number exactly once.
Strict Killer: A clue in the top left corner of a cage indicates the sum of all numbers placed into that cage. Digits cannot repeat within a cage, including the digits used to write the cage total.
Some cage totals have been replaced by question marks. The no-repeat rule still applies to the correct value of each question mark. Cage totals cannot start with a leading zero.
For example, a 3-cell cage summing to 18 could not be formed of 4 + 6 + 8 as this repeats an 8 within the cage. As another example, there can be no cage summing to 22, because this already includes repeated digits in the total.
Lösungscode: Row 5, left to right
Zuletzt geändert am 4. Juli 2025, 17:42 Uhr
Gelöst von Md88keys, smckinley, steeto, lmdemasi, Clara123, RockyRoer, Dentones, Jesper, wenchang, Chishiri, SXH, h5663454, Qodec, mayiyang, kdwji, AAAAAAAAAAAAAAAAAAA, samuel1997, SKORP17, Tilberg, han233ing, Exigus, peacherwu2, Isael, PierreTombal, Collecter, FFout, 0123coolkid, zonka, paranoid
Kommentare
am 8. Juli 2025, 17:56 Uhr von PierreTombal
Huh? That's weird. Was the puzzle changed? I couldn't spot anything wrong with my solution, but then I noticed that the cages in boxes 4 and 7 are different from the one I made.
am 6. Juli 2025, 12:01 Uhr von Exigus
That was very cool, especially the start. Thanks!
am 5. Juli 2025, 23:41 Uhr von Tilberg
Thank you for this! Quite tough, but I loved it. Whenever I was stuck and about to embark on some enforced bifurkation logic (about 3-4 times), I stopped and reminded myself that up until then every step was elegant and beautiful, and I just had to find the equally beautiful next logic instead of ramming a bulldozer into this delicate flowerbed. And indeed, each step was as nice as expected once I found it.