SUDOKU, Excel shows you the way.
I wrote this sheet Excel to show the following stage of a SUDOKU and give explanations onto this stage. 6 methods to advance : Single, Hidden Singles, Locked Candidates,
Naked pair, Naked triple, X-wing
You can see the explanations Or download it :
http://perso.wanadoo.fr/API1661/
Comments are welcome. No password to see the functions Excel.
Au revoir