Welcome to SudokuTitans
Dive into competitive Sudoku strategies or solve a new puzzle every day.
Today's Puzzle
2025-12-08
The Eternal Lighthouse — Online Sudoku No Download
Play this free online sudoku in your browser. A lonely lighthouse keeper encoded his diary inside the grid—solve it to learn why the beacon never dims.
Play now →Daily Sudoku
Instructions:
- Click a cell to select it
- Use the number pad below to enter numbers
- Each number cycles through three states when clicked repeatedly
- Enable “Highlight same numbers” to spot duplicates
- Original puzzle numbers cannot be changed
- Use Export to save the puzzle for publishing
Puzzle ID: Daily Sudoku
Difficulty: medium
Creator: Sudoku Titans
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