What is Level 6 in Sudoku?

Level 6 puzzles have 31 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 6 puzzles on 2026-01-16.

This leaderboard shows the top 50 players who solved Level 6 Sudoku puzzles with 31 clues the fastest on 2026-01-16.

Level 6 is part of Sudoku99’s structured difficulty progression, where lower clue counts mean greater challenge.

Rank	Nickname	Time	Puzzle
1	Guest #54905	00:02:33	#0691084
2	Guest #54904	00:03:14	#133891
3	Guest #54864	00:05:17	#996442
4	Guest #54905	00:06:00	#144632

What does Level 6 mean?: It corresponds to puzzles with 31 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.