What is Level 4 in Sudoku?

Level 4 puzzles have 33 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 4 puzzles on 2025-12-26.

This leaderboard shows the top 50 players who solved Level 4 Sudoku puzzles with 33 clues the fastest on 2025-12-26.

Level 4 is part of Sudoku99’s structured difficulty progression, where lower clue counts mean greater challenge.

Rank	Nickname	Time	Puzzle
1	Guest #52447	00:02:58	#648939
2	Guest #52470	00:03:00	#246595
3	Guest #52441	00:03:07	#235391
4	Guest #52429	00:03:23	#190825

What does Level 4 mean?: It corresponds to puzzles with 33 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.