What is Level 10 in Sudoku?

Level 10 puzzles have 27 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 10 puzzles on 2026-01-02.

This leaderboard shows the top 50 players who solved Level 10 Sudoku puzzles with 27 clues the fastest on 2026-01-02.

Level 10 is part of Sudoku99’s structured difficulty progression, where lower clue counts mean greater challenge.

Rank	Nickname	Country	Time	Puzzle
1	Guest #53217		00:11:03	#633144

What does Level 10 mean?: It corresponds to puzzles with 27 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.