Logic Masters Deutschland e.V.

Why Romans Didn't Like Zero (FOW)

(Published on 15. August 2023, 12:35 by gdc)

This puzzle is similar to Nothing To Add, where I explored how allowing zeroes on arrows changes things up. This time the focus is on XV clues instead.

  • Normalish sudoku rules apply. Place the digits 0 to 8 in each empty cell. Digits don't repeat in a row, column or box.
  • Digits joined by a V sum to 5. Digits joined by an X sum to 10. Not all Xs and Vs are given
  • Digits on grey circles are odd
  • Fog of War: The grid is partially covered in fog, placing digits correctly lifts it.
Play Online: CtC

Difficulty

This sudoku requires you to do quite some sudoku in the mid-solve. However, based on the incredible number of test solves on the CtC discord (thanks, everyone), I still put this in as a 2 star.

Solution code: Column 8 (9 digits)


Solved by jalebc, MicroStudy, EmX68, Starlight, zodiakbg, oshitada, zorant, h5663454, lmdemasi, Linnce, cdwg2000, sanabas, Sliark, Roberto, taniabn, fuxia, PinkNickels, mcc, kublai, tiuhto, pookster, gdits, ... ThePtrocanfer, ThirdWiseMonkey, mbaaz, Vegan_warior, widjo, Blummy, ranalloatl2, martin1456, sarabtx, naggy, richliaofs, Fenn, TheNineElements, sorhead, Crabbsy Malone, Jaspaco, Jastucreudo
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Comments

on 4. February 2024, 12:39 by Peteronium
A bit of tough one for me and had to restart twice. Third time I managed to kill the persistence thought that 1/9 is a legitimate possibility for a X and secondly not to forget that 0s are part of 0 to 8 :)

on 25. November 2023, 08:07 by KingIsulgard
Had to guess to disambiguate the last box (box 9)

on 14. September 2023, 13:14 by dingledork
This was SO much fun to solve! Little sticky in the middle, but very satisfying. Thanks!

on 16. August 2023, 11:09 by Big Tiger
Probably 2 stars if I were more awake but it felt like 3 stars as I missed several obvious deductions.

on 16. August 2023, 08:37 by vorash00
I've tried 0-8 before but generally have to give up because my brain betrays me. This was great love FoW in general but its really helpful. lovely break in, flows well. I can see why you gave it 2 stars was stuck for a short spell

on 16. August 2023, 02:49 by ukjohnd
Never been tempted to try a 0-8 puzzle before, but the guiding flow of the FoW with the XV constraints made it a very satisfying solve.

on 15. August 2023, 19:46 by Ragna
Fun puzzle, nice flow!
Thank you for sharing. :-)

on 15. August 2023, 14:48 by taniabn
Even though I struggle with 0-8 sudoku, I agree this is a 2 star. Very nice puzzle ^^

Difficulty:2
Rating:88 %
Solved:276 times
Observed:13 times
ID:000ETE

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