The New Sudoku Players' Forum

[Bud]

There is a lot of new information about the franken and mutant swordfish at Sudopedia, The most interesting is that these are multi-pattern techniques like the row and column swordfish. The only patterns I have seen on the internet before are the rarest of the 5 patterns for these techniques.

[daj95376]

If you're looking for a thread with examples, try ...

http://forum.enjoysudoku.com/viewtopic.php?t=4993

If you're looking for members to provide examples, that can be arranged beyond your wildest dreams!

[wintder]

There is a lot of new information about the franken and mutant swordfish at Sudopedia, The most interesting is that these are multi-pattern techniques like the row and column swordfish. The only patterns I have seen on the internet before are the rarest of the 5 patterns for these techniques.

Dud, you came to the right place. Daj and Ronk know it, if it is known.

[Pat]

here are the links to the SuDoPedia articles --

Franken Swordfish
Mutant Fish

-- the sections on "The 5 Patterns for the Franken Swordfish" and "The 5 Mutant swordfish patterns" were recently added by Nienhaus -- his discussion is flawed in my opinion (but i shan't touch the SuDoPedia).

The previous example is the maximum pattern for the franken swordfish.
It contains 12 cells
and becuase of this its occurence is much rarer than the any of the other 4 patterns.

actually, the Franken Swordfish is a "hidden pattern" of 15 cells (marked "/")

the "12 cells" mentioned by Nienhaus
are those where the digit may occur (marked "X"),
and nobody said the 12 must all be present