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 2026-02-02.

This leaderboard shows the top 50 players who solved Level 9 Sudoku puzzles with 28 clues the fastest on 2026-02-02.

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

Rank	Nickname	Time	Puzzle
1	Guest #57009	00:02:35	#445669
2	Guest #57001	00:03:02	#470026
3	Guest #57006	00:10:14	#901038

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.