Mysterious Samurai (Hard Ver. of Sudoku Challenge 2020)
(Published on 12. September 2020, 23:40 by Kwaka)
Even though you participated in the contest, you will see that you need to use other logical steps to solve this one.
Rules of Mysterious Samurai Sudoku:
There are five interconnected grids.
All of them follow 9×9 Classic Sudoku rules, and each of
the four 9×9 grids except the center follows exactly one of
the rules described below:
▶ Renban (Orthogonally Connected)
Digits placed in each shaded region, which is orthogonally connected, must form a consecutive, non-repeating set.
▶ Anti-Fortress
A digit placed in a shaded cell must be strictly lesser than digits placed in adjacent unshaded cells.
▶ Clone
Digits in the same place in both shaded figures must be identical.
▶ Extra Regions
Each of the shaded regions must also contain each digit from 1-9 exactly once.
NO TWO GRIDS follow the same variant rules.
(Of course if one follows Extra Regions then it follows also Renban. But in this problem, if a grid X follows Renban and a grid Y follows Extra Regions then we don't call a grid Y follows Renban.)
Puzzle:
Solution code: Two main diagonals which consist of total 42 digits: first diagonal starting from top-left to bottom-right, followed by second diagonal starting from top-right to bottom-left.
Comments
on 16. September 2020, 13:15 by cdwg2000
A great puzzle that can be completed without special skills, provided that you have to find the corresponding variant rules for each Sudoku successfully. very good!
on 13. September 2020, 06:51 by polar
Penpa edit link: https://git.io/JUlAz
