The New Sudoku Players' Forum

[pmin00]

Hello,

I have updated my software that generates "Calcudoku" puzzles to
also create Killer Sudokus. The program isn't quite there yet: especially
the difficulty rating is off, I think.

The puzzles are at: http://www.calcudoku.org/killersudoku

Opinions from Killer Sudoku experts will be much appreciated

thanks,

Patrick

[Pat]

every 3×3 box has the numbers 1..9 exactly once

also every row,
and every column;

thus, your Difficult puzzles have no answer.
{ edit Jul.5: good news, today your Difficult puzzle is valid. }

if you really mean to drop these requirements --

• your puzzles are not "killer" SuDoku (use a different name)
  
• and, your puzzles have more than one answer

[pmin00]

thus, your Difficult puzzles have no answer.

Can you give me an example of a puzzle with no answer and/or with more than one answer?
As I wrote, I'm still testing, so it's possible there's a bug somewhere.

if you really mean to drop these requirements --

• your puzzles are not "killer" SuDoku (use a different name)
  
• and, your puzzles have more than one answer

How are they not Killer Sudoku?

I read that there is a requirement to also not have duplicates in cages: one of my
users wrote that he had seen Killer Sudokus from Japan both with and without duplicates.

Currently the puzzles on my site can have duplicate numbers in a cage (as long as
the other requirements are satisfied): are you referring to this rule?

Patrick

[JasonLion]

I read that there is a requirement to also not have duplicates in cages

No duplicates in a cage is the generally agreed upon definition. In the past there have been some puzzle sources that did not adhere to this rule, but essentially all of them have changed and now accept it as a standard rule.

[pmin00]

No duplicates in a cage is the generally agreed upon definition. In the past there have been some puzzle sources that did not adhere to this rule, but essentially all of them have changed and now accept it as a standard rule.

Great, good to know, thanks.
I'll update my software, starting tomorrow my puzzles
will no longer have duplicates in cages