• finger on the touchpad (or The left mouse button)      Long Press       to call out the wheel, then slide your mouse or finger to select the number, leave the screen with your finger (or release the left mouse button) to automatically fill in the numbers
• You can try Suggestion function, the system will give corresponding prompts, if not, show that this game is difficult, do not be discouraged, you can try the following solution
• When you have several numbers on the table cell (two are generally recommended), you can try the Pre-filled Mode , then select the number you guessed. If you find there is a conflict when solving Sudoku, click the Revoke button, and the entire Sudoku Table will be reset to the state when you click Pre-filled Mode Button. The value you guessed will be filled in red, which indicates that there is a conflict with this value, so you can choose another value you guessed, cheer up.
• When you see more interesting Sudoku questions on the Internet, you can use HomeMade function, enter it into the software, and start playing.
• We also provide ipad version, you can try it on ipad, more suitable for operation