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Sudoku puzzles (Su Doku)

My database includes 5378 puzzles for the moment and I'm constantly generating more.

Rules: Fill in the grid so that every row, every column, and every box contains the digits 1 through 4. The grey boxes is even numbers and the white boxes is odd. There is only 1 solution for each puzzle.

For more information check out Wikipedia.

131679 puzzles downloaded.

1 4    
Showing puzzle number: 4757
Puzzletype: Optimal Sudoku
Startnumbers: 2
Difficulty: Super easy (0)
Solution methods: SiSo
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