Classic sudoku, unhurried.
By the hardest solving technique a puzzle actually needs, not by how many digits are showing. Gentle needs only naked singles. Severe needs naked and hidden pairs. No puzzle ever requires a guess.
Yes. Each puzzle is checked for a single unique solution before you ever see it.
Nothing forced. You are offered a way to keep going. Losing fifteen minutes of work to a counter is not our idea of a puzzle.
No. Puzzles are generated on your device. Only the ads need a connection, and the game plays fine without them.
On your device only. There is no account and no server.
Email support@klrwebsolutions.com and describe what happened. Mentioning your device and iOS version helps.
See the privacy policy.