You can find a lot of sudoku resources online. Here are some of my personal favorites. Just click on the picture to visit the websites.
Large Sudoku Sites
Daily 16×16 Sudoku challenge
16×16 Sudoku for different levels
25×25 Sudoku for different levels
25×25 Sudoku using letters. Also have smaller sizes (10×10 to 16×16)
25×25 Sudoku using letters. Also have smaller size (16×16) and different levels.
print 25×25 puzzles at different levels
print 25×25 puzzles at different levels
Downloadable Applications and Tutorials
Sudoku for Windows application. Love the way the application colors the cells giving the user an alternate way to detect patterns .
website for all types of logic strategies.
website for all types of logic strategies.
website for all types of logic strategies.
youtube tutorial from the Sudoku guy