Introduction - If you have any usage issues, please Google them yourself
Sudoku, Sudoku input will automatically fill in, fill in the blank out of 0 to press enter all the answers, such as sample 081 000 000 020 087 000 700 050 006 900 015 400 000 000 030 500 030 000 003 000 028 004 000 700 000 600 005