sudoku.coach is THE website for all of your Sudoku needs. Here you can solve Sudokus, learn new techniques, practice those, print out Sudokus on paper and much more.
It took me another 10 months to further develop my Sudoku website. Previously it was the best site to learn and play classic Sudokus. Now it is also one of the best sites to create and share variant Sudokus.
Happy puzzling!
Cheers, Jan
Jan Feldmann