The New Sudoku Players' Forum

[bermec]

Hi all,
I am another addict and learning the various methods of solving.
Now attempting to solve with the swordfish pattern.
I believed I had found one, all eights cancelled but one, (row 2, column 6).
Could you please point out the error of my ways...

http://www.rog.richieward.com/pics/swordfish2.gif

thanks in advance.

[Bigtone53]

Bermec,
Others will explain it more technically (and better) than I can but a swordfish has to fit into an overall 3 row X 3 column set. The fact that your example involves 4 rows stops it being a potential swordfish.

[bermec]

Thanks Bigtone53,
You have put your finger right on it.
I can see the fault instantly. The theory behind the swordfish was destroyed by using four rows.
Cheers!