Standard Easy Medium Hard Very Hard Diagonal Easy Medium Hard Very Hard 16x16 (Hexudoku) Easy Medium Hard Very Hard Diamond (Sohei) Easy Medium Hard Very Hard Cross (Samurai) Easy Medium Hard Very Hard Bridge Easy Medium Hard Very Hard Search Rules Contact Hosted by Essesoft SRL SudokuOnline.ro - 2006-2010	Sudoku Diagonal Hard - ID: 1708440 www.sudokuonline.ro Allow multiple values Show wrong values with a different color