Double Negative (Kropki Broken 159)
(Published on 18. December 2021, 19:02 by tallcat)
Continuing to mix and match constraints with broken 159. I was aiming for a minimalist puzzle here, and it turned out nicely while still not being monstrously difficult. Happy solving!!
Normal Sudoku rules apply
Kropki: Cells separated by a black dot have a ratio of 1:2. ALL possible black dots are given.
Broken 159: Digits in red-shaded cells in column 1 indicate the position of 1 in the corresponding row. The same is true in columns 5 and 9 for 5's and 9's respectively. ALL possible red cells in columns 1,5,9 are given
Can be found at f-puzzles or CTC
I was also lucky to have Bremster feature a solve video for this puzzle on his Youtube channel. You can find that here
Normal Sudoku rules apply
Kropki: Cells separated by a black dot have a ratio of 1:2. ALL possible black dots are given.
Broken 159: Digits in red-shaded cells in column 1 indicate the position of 1 in the corresponding row. The same is true in columns 5 and 9 for 5's and 9's respectively. ALL possible red cells in columns 1,5,9 are given
Can be found at f-puzzles or CTC
I was also lucky to have Bremster feature a solve video for this puzzle on his Youtube channel. You can find that here
Solution code: Row 8 (Left to right) followed by Column 7 (top to bottom). 18 digits, no spaces.
Last changed on on 19. December 2021, 13:01
Solved by jalebc, SKORP17, TheRiddler, Julianl, rimodech, Baldo95, butch02, Playmaker6174, Steaky, Godrick, zorant, riffclown, Quacks, twototenth, ymhsbmbesitwf, henrypijames, Askloomok, mlkj, marcmees, ... Niverio, Azumagao, Crul, flaemmchen, dumediat, karen_birgitta, Bellsita, karlmortenlunna, bolado, Christounet, apwelho, jimblek, Just me, ScienceNerd2240, saskia-daniela, Bobbobert, GhTheOne
Comments
on 20. December 2021, 16:15 by pwfd
Love the broken 159 ruleset so far, this was another great one!
on 19. December 2021, 13:01 by tallcat
Clarification of rules
Last changed on 19. December 2021, 10:32
on 19. December 2021, 09:02 by henrypijames
When you say "ALL possible red cells are given", you mean all possible red cells in columns 159, right? For example, there must be a 2 in C2, which would be self-indexing and therefore red.
Last changed on 18. December 2021, 21:33
on 18. December 2021, 21:33 by Playmaker6174
Very smooth and enjoyable solve! :)
Last changed on 18. December 2021, 20:42
on 18. December 2021, 20:31 by fpac
does the negative constraint apply to only col 159 or all columns?
edit: nvm. i figured it out
Reply: Sorry! Just saw this
