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XV and Entropy

(Eingestellt am 22. Juli 2026, 19:28 Uhr von addie)

Standard 9x9 sudoku rules apply.

Antiknight and Antiking: Any two cells separated by a knight's or king’s move in chess cannot contain the same digit.

Nonconsecutive: Any two orthogonally adjacent cells cannot contain consecutive digits.

XV: Digits separated by an X sum to 10, those separated by a V sum to 5. Not all Xs and Vs are necessarily given.

Global Entropy: Every 2x2 box contains one low, medium, and high digit (123, 456, 789).

Solve on Sudokupad

Lösungscode: Row 9


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Kommentare

am 29. Juli 2026, 13:49 Uhr von itsid
looked to be hard after a few moments... aaand then I realised, that I forgot to bring a rope... ;-)
Then it went okay

Very lovely puzzle, thank you

am 27. Juli 2026, 19:37 Uhr von superkinkel
Brutal, but very nice. I think in the end I didn't need the global entropy constraint, albeit it may have made it a tad easier in the end - but I has forgotten about it by then.

am 23. Juli 2026, 15:16 Uhr von Jrosas
Very nice puzzle

Zuletzt geändert am 23. Juli 2026, 09:47 Uhr

am 23. Juli 2026, 09:43 Uhr von RedBarchetta
12 minute solve. It is pretty well known that Anti knight/king and non consecutive equals roping. To the north/south it is roping, and to the east west it is mod 3 in the first column, next mod 3 in second column, last mod 3 in last column - and that repeats to the next columns to the right (or vice versa roping/mod3 columns/rows). So if Box 1 column 1 is 258, and column 2 is 147, and column 3 is 369, then box two must follow - 258,147,369; and box three the same. And the Columns in column 1,2,3, are roping. Anyway lots of puzzles like this. I just tested the "v" clues for roping to either the east/west or north/south. Did not need global entropy to solve. Looks like a 4 star puzzle (currently) if you don't know this pattern. I gave it a 1 star for those who do. Thanks!

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ID:000TZL

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Lösungscode:

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