The New Sudoku Players' Forum

[m_b_metcalf]

I stoked up my old code to look into this, and produced a couple of X-windoku puzzles by the way:

Code: Select all

 . 7 . . . . . 6 .
 . . 8 . 9 . . . .
 . . . . . 3 . . .
 . . 5 . . . . . 4
 . . . . 7 . . . .
 1 . . . . . . . .
 4 2 . . 3 . . . 6
 . . . 9 . . . . .
 9 . . . . . . . . 15 clues, fairly easy

 7 . 8 . 2 9 . . .
 . . . 5 . . . . .
 . . . . . . 6 . .
 . . . . 9 . . . .
 . 2 . . . . 8 . .
 . . . . . . 3 . .
 . 5 . . . 2 . . .
 . . . . . . . . 3
 8 . . . . . 4 . . 15 clues, rather hard

Mike

[tarek]

Sukaku explainer could verify and rate them for you. It had several of the popular variants supported. The generalised forms of techniques (intersection and naked sets) need to be selected which I’m hoping happens by default when you choose a variant mode

[m_b_metcalf]

Sukaku explainer could verify and rate them for you. It had several of the popular variants supported. The generalised forms of techniques (intersection and naked sets) need to be selected which I’m hoping happens by default when you choose a variant mode

Tarek, Thanks. I didn't realise that the variants could be combined. Its ratings confirm what I'd written.

Mike

[tarek]

On the GUI you can combine all available variants except that you can't choose more than 1 out of (Asterisk, Girandola, Center dot). This is to avoid "Colour salad"

tarek

[m_b_metcalf]

And, to round this off, a 13-clue X-windoku rated at SE 9.0:

Code: Select all

 . . . . . . . . .
 . . . 9 . . . . .
 4 2 . . . . . . 6
 1 . . . . . . . .
 . . . . 7 . . . .
 . . 5 . . . . . 4
 . . . . . 3 . . .
 . . 8 . 9 . . . .
 . 7 . . . . . 6 .   X-windoku, rather hard

[m_b_metcalf]

Code: Select all

 . . . . . . . . .
 . . . . . . . . .
 . . . 3 4 . . . .
 . . . 7 . . . . 6
 . . 1 . 3 . 5 . .
 2 . 3 . . . . 1 .
 . . . 9 . . . . .
 . . . 8 . 4 . . .
 . . . . . . . . .  X-windoku, 13 clues, ED=10.0/1.5/1.5