Ultimate Sudoku is a classic number puzzle game where players solve 9x9 Sudoku grids. Choose from three difficulty levels (Beginner with a smiley, Intermediate with a neutral face, Advanced with a frowning face) then fill the grid such that each row, column, and 3x3 subgrid contains numbers 1-9 without repetition. A timer tracks your progress, and you'll get a confirmation prompt when exiting.
Ultimate Sudoku delivers a clean, no-fuss take on the classic puzzle. The level selection with smiley faces makes it easy for players of all skill levels to jump in, and the timer adds a fun competitive edge. The interface is intuitive—selecting cells and numbers is straightforward, and the grid highlights help keep track of where you're working. It's perfect for Sudoku fans looking for a reliable, accessible version of the game without unnecessary bells and whistles.
Highlights:

The big, bold 'Ultimate Sudoku' title practically screams 'I’m here to test your brain!'.

Choose your pain level—smiley for chill, neutral for 'meh', frowny for 'why am I doing this?'.

Oops! That 3 turned red—guess someone forgot Sudoku rules are non-negotiable.

Wait, 'ARE YOU SURE?'—the game’s way of saying 'Don’t leave me hanging!'.
Instructions:
1. Click 'PLAY' on the title screen. 2. Select a difficulty level (Beginner/Intermediate/Advanced) using the smiley face buttons. 3. On the game screen, click an empty cell to select it. 4. Click a number (1-9) from the bottom panel to place it in the selected cell—make sure no row, column, or 3x3 subgrid has duplicate numbers. 5. The timer at the top tracks your time. 6. If you try to exit, a confirmation dialog will appear—click the checkmark to confirm or X to go back.