Leaderboard - This Week
Rankings from completed Classic Sudoku puzzles. Scores are higher for faster solves with fewer mistakes and hints. Compete in the Weekly Competition for a separate ranked bracket.
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Play NowHow scoring works
| Factor | Effect |
|---|---|
| Completion speed | 2 points deducted per second, capped at a 5,000-point penalty |
| Difficulty | Same 10,000-point base at every level - Expert and Master simply take longer to solve cleanly |
| Mistakes | Each mistake deducts 200 points (max 3 before game over) |
| Hints | Each hint used deducts 300 points |
| Notes | No penalty - Use notes freely |
Every completed puzzle starts from a base of 10,000 points. The clock then deducts 2 points per second of solving time (capped at a 5,000-point penalty), each mistake costs 200 points, and each hint costs 300 - So a fast, clean solve is the only path to a near-perfect score. Scores never drop below zero, and completions under 30 seconds are automatically flagged for review to keep the rankings fair. The All-Time board adds up every score you earn, while Best Single Score shows your finest individual solve. Want more ways to compete? Enter the weekly Sudoku competition, where everyone races the same puzzle, or build a streak in the daily Sudoku challenge.