The New Sudoku Players' Forum

[Mathimagics]

Oh tarek, what a wag!

Ok, plus whether your specs have a contradiction. This is getting rather Python-esque, like, what have the Romans ever done for us?

[Mathimagics]

Sudoku + Forbidden Pairs

FP = 15 26 27 28 29 39 47 59 69

SFP3C.png (3.58 KiB) Viewed 24 times

This is one of 3 possible 2-clue puzzles for this FP:

2-clue puzzles: Show

Code: Select all

..............8.................9................................................
..............8.......9..........................................................
....5.7..........................................................................


Solution: Show

Code: Select all

412356789975248631863197524356789412248631975197524863789412356631975248524863197

The FP list is interesting, for 2 digits (2 and 9) there are 4 FPs, so there are only 4 allowed neighbours for those values. These are strong constraints.