At the beginning you only have 10 Sudokus but you can unlock more Sudokus until 50 completing the different sudokus.
| Sudokus | How to unlock
|
|---|
| Sudokus 11 to 20 | Solve 5 of 10 sudokus.
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| Sudokus 21 to 30 | Solve 10 of 20 sudokus.
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| Sudokus 31 to 40 | Solve 15 of 30 sudokus.
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| Sudokus 41 to 50 | Solve 20 of 40 sudokus.
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