The New Sudoku Players' Forum

[Mathimagics]

Here is a Samurai puzzle with multiple modes (different rules in each sub-grid).

Arbitrary house specifications are featured heavily - these are nothing new, they are implicit in various existing variants, such as Diagonals, Girandola, Killer (the cages), etc ...

There is a full description of AH's and this puzzle over at SudokuSolvers, where I first posted this, so I won't repeat it all here.

Enjoy!

PS: it's not particularly easy, so sharpen your pencils ...

Demo-002P-002.png (16.92 KiB) Viewed 870 times

[creint]

Very hard, but has a single solution:

Hidden Text: Show

Code: Select all

2 6 3 7 1 8 5 9 4       2 1 8 3 4 6 5 7 9
4 8 9 3 2 5 1 6 7       3 5 9 2 1 7 8 4 6
1 5 7 4 9 6 2 3 8       6 4 7 5 9 8 2 1 3
3 1 5 2 8 7 6 4 9       1 6 5 4 3 2 7 9 8
6 2 4 1 3 9 7 8 5       7 3 2 1 8 9 4 6 5
7 9 8 6 5 4 3 2 1       8 9 4 7 6 5 1 3 2
5 4 1 9 6 2 8 7 3 5 9 6 4 2 1 6 5 3 9 8 7
9 3 2 8 7 1 4 5 6 8 2 1 9 7 3 8 2 1 6 5 4
8 7 6 5 4 3 9 1 2 4 3 7 5 8 6 9 7 4 3 2 1
            5 9 1 7 6 2 8 3 4           
            3 2 8 9 5 4 1 6 7           
            7 6 4 1 8 3 2 5 9           
4 2 9 3 6 7 1 8 5 3 7 9 6 4 2 1 3 5 7 9 8
8 7 6 4 1 5 2 3 9 6 4 5 7 1 8 2 6 9 5 4 3
3 1 5 8 2 9 6 4 7 2 1 8 3 9 5 4 7 8 2 1 6
1 9 3 2 4 6 5 7 8       2 7 1 5 4 3 8 6 9
2 6 4 5 7 8 9 1 3       8 3 6 9 1 2 4 7 5
7 5 8 1 9 3 4 6 2       4 5 9 7 8 6 1 3 2
5 4 1 7 3 2 8 9 6       5 6 4 3 2 1 9 8 7
6 3 2 9 8 1 7 5 4       1 2 3 8 9 7 6 5 4
9 8 7 6 5 4 3 2 1       9 8 7 6 5 4 3 2 1


[Mathimagics]

Thanks creint for that confirmation!

It is in fact minimal, not that this necessarily means hard, of course, but more likely to be so …