Sudoku - Logic Puzzle

This is a simple Sudoku puzzle game.

** Basic Introduction
1. Please select a puzzle.
2. Start the game.
3. You can pause the puzzle and continue solving it using the "Continue" option.

** Game Features
- Undo: You can revert the entered numbers to their previous state.
- Redo: You can restore numbers that were canceled via Undo.
- Memo Mode: You can display candidate numbers in blank spaces before confirming the answer.

** Settings
- Multilingual: Supports Korean and English.
- Theme: Supports Light and Dark modes.
- Other: Adjust background music, sound effects, and vibration.

** Advertising Policy
- Hint: Provided for free once per game; recharged once after watching a rewarded ad.
- Continue: If the current game fails and you wish to continue, you can resume the game after watching a rewarded ad.
- Aside from Hint and Continue, only banner ads are available.