Mod 9 makes it solvable
(Published on 25. May 2021, 05:39 by rmahus)
Normal Sudoku rules apply.
Additions and multiplications are Mod 9 and 9=0 is written down as 9.
Digits in two cells separated by an X sum to 10.
Digits in two cells separated by a V sum to 5 Mod 9.
White dots join cells with consecutive digits. 1 and 9 are consecutive.
A cell joined by a black dot is twice the other Mod 9. For example mod9 (2 * 8) = mod9 (16) = 7. 7 can join 8
Link to play: F-Puzzles
Additions and multiplications are Mod 9 and 9=0 is written down as 9.
Digits in two cells separated by an X sum to 10.
Digits in two cells separated by a V sum to 5 Mod 9.
White dots join cells with consecutive digits. 1 and 9 are consecutive.
A cell joined by a black dot is twice the other Mod 9. For example mod9 (2 * 8) = mod9 (16) = 7. 7 can join 8
Link to play: F-Puzzles
Solution code: Row 1
Last changed on on 12. June 2021, 17:51
Solved by LMettrop, StefanSch, kublai, jhuijts, SudokuExplorer, hints_, RockyRoer, bigger, panthchesh, Yerui, karen_birgitta
Comments
on 19. September 2021, 15:51 by uvo_mod
Labels ergänzt.
on 12. June 2021, 17:51 by rmahus
Fix highlight in F-puzzle link
on 25. May 2021, 14:51 by rmahus
@StefanSch 1 and 9 are consecutive in Mod 9
on 25. May 2021, 13:38 by StefanSch
Are 9 and 1 consecutive digits? Mod 9 they are.
on 25. May 2021, 10:42 by LMettrop
I really liked this puzzle. First figuring out all the new kropki possibilities, and then eliminating them using the other clues.
