The New Sudoku Players' Forum

[MrChips]

I have several puzzles that I am unable to complete.

I see from this excellent forum that there is a technique called x-wings. Can anyone point me to an explanation of how these work please?

regards

[Max Beran]

Here

http://www.simes.clara.co.uk/programs/sudokutechniques.htm

or here

http://www.sudoku.org.uk/PDF/Solving_Sudoku.pdf

or just Google with x-wing and Sudoku