Hello

as you all, I am a lover of sudoku and spend every day solving (successfully!) at least 1 sudoku (the more complicated the better).

I would say that my first meter to judge a complicated sudoku is to count the number of given "numbers". If the sum is ~21/22 that sudoku gets my priority attention.

Now, I have tried to read a few topics and they are all fantastic but, because I am not a great and attentive reader, i get lost.

so please forgive me and allow me to go via the lazy way and make you a question.

My teqnique in resolving the sudoku is to write a maximum of 2 possible number in one cell

when there is no other possibility and I am complitly stuck I try with the "Arianna thread" by chosing a "signifacative" number where to start.

I never faild !

Question:

do you pure sudoku masters use the Arianna Thread as well ?

a friend of mine told me that who uses the "Arianna Thread" is someone who has no brain, so it should not be used.

can you also comment my technique ?

ciao motoaspes