What is Level 15 in Sudoku?

Level 15 puzzles have 22 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 15 puzzles on 2025-06-09.

This leaderboard shows the top 50 players who solved Level 15 Sudoku puzzles with 22 clues the fastest on 2025-06-09.

Level 15 is part of Sudoku99’s structured difficulty progression, where lower clue counts mean greater challenge.

Rank	Nickname	Time	Puzzle
1	Guest #27658	00:05:37	#923578
2	Guest #27657	00:06:07	#559817
3	Guest #27659	00:07:03	#405186
4	Guest #27659	00:08:48	#91611
5	Guest #27661	00:12:25	#707336

What does Level 15 mean?: It corresponds to puzzles with 22 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.