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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

8
6
7
4
1
3
9
5
2
4
1
3
5
2
8
6
9
5
8
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7
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6
8
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7
3
1
5
2
9
3
1
5
2
6
8
4
5
2
9
6
8
4
7
3
1
1
7
8
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6
2
9
5
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2
9
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1
7
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9
1
7
8
3
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Number sequence: empty → big number → small mark → removed

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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