What is Level 9 in Sudoku?

Level 9 puzzles have 28 given clues. The fewer the clues, the harder the puzzle.

How is the ranking calculated?

Players are ranked based on the fastest completion time for Level 9 puzzles on 2025-05-19.

This leaderboard shows the top 50 players who solved Level 9 Sudoku puzzles with 28 clues the fastest on 2025-05-19.

Level 9 is part of Sudoku99’s structured difficulty progression, where lower clue counts mean greater challenge.

Rank	Nickname	Country	Time	Puzzle
1	Guest #25179		00:08:20	#403304

What does Level 9 mean?: It corresponds to puzzles with 28 clues. Fewer clues means higher difficulty.
How often is this ranking updated?: Every day. Rankings reset daily and show results for the current date.
Can I appear without logging in?: Yes. You can still appear in the leaderboard as a guest player.