Sudoku

After receiving the rest of the achievements, you will approximately reach the Master rank, then go to the Powerups menu and put the Book (XP Bonus) and Gamble. The Book gives you additional points after each completed sudoku puzzle, and the Dice give even more points than the Book, but only if the puzzle is completed without errors! If you make a mistake in the puzzle, the game ends immediately. Go to the Lighting game mode and choose the intense level (for its correct completion, they already give 750 points)

https://su-doku.ru/puzzle/standart/
Enter all available numbers into the fields, and the program will decide everything for you.

P.S. sometimes it happens that the program does not solve the puzzle completely - then in this case, press the "Solution options" button and it will show you several options - although in fact this is not a correctly composed sudoku, which has several solutions. Alas, the game knows only one correct option, so you will have to randomly choose one of several. Most often, the last proposed option turns out to be correct.