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Sudoku: Classic Number Puzzle
Classic sudoku with difficulty that is measured, not guessed.
Sudoku with the two things most sudoku apps get wrong put right. Every puzzle was solved one named technique at a time, and its difficulty band is the hardest technique it actually needed, rather than a count of missing clues. The hints explain the move instead of just filling it in.
What makes it different
- The difficulty label is measured, not guessed.
- No timer, no lives, and no energy meter to wait on.
- Plays fully offline — adverts are optional and rewarded only.
- Free, with nothing locked behind a purchase.
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