Solve Sudoku play online

* If you enter a number, the numbers that can be filled in each blank are updated.
* You can learn the solution by visually checking this process.
* When blank remains even after entering all the numbers for a given Sudoku problem, there may be multiple answers. At this time, you can find the answer by entering one of the numbers that can be put in the blank.
* If the entered value is erased, it does not match the rule and you must enter a different number.
* The solution process is self-developed, so it may be a bit sloppy, but we will keep updating it.