Sudoku Puzzle Daily

## Description

Sudoku is a logic-based, combinatorial number-placement puzzle. The objective is to fill a 9×9 grid with digits so that each column, each row, and each of the nine 3×3 subgrids that compose the grid (also called "boxes", "blocks", or "regions") contains all of the digits from 1 to 9.

Features:

\- Support pencil mark.
\- Support snap and revert.
\- Support check answer If you really can not pass the level.
\- Five difficulty modes and thousands of levels.
\- Global leaderboard.