The New Sudoku Players' Forum

[kurrrak]

Hello everyone newbie here, and please, forgive me my poor English.
I've been solving many sudokus without problem but there the time has come for something harder. I've learned some techniques like nishio or swordfish (thanx to all people who care to share) but not every of them, like x-wing. I stuck at this sudoku, what do i miss, what solving techniqe do I need to use?




thanks and regards
kurrrak

[Anette]

Look at column 4, there is one number that only can go in one place there.

[kurrrak]

Thanx anetta, although I still don't know which one is it, I got some clue now. Will think about it later. I hope it doesn't require any special technique ;).
cheers

[Anette]

It is rather simple since you have pencilmarked all your candidates. Just look carefully, there is one number that only appears as a candidate once in column 4.

[kurrrak]

Got it! How blind I was
Thanx again.