Sign Up with a display name and it appears on the leaderboard after you finish a game. No password needed.
Your display name is shown publicly. Email is optional, required only for prizes, and kept private.
No one has posted a score yet. Be the first.
Suds is a free daily sudoku from Source of Truths. Each day gives you a fresh 9×9 grid with a handful of printed clues. Fill in the rest so that every row, every column, and every 3×3 box holds the digits 1 through 9 exactly once. There is always a single, logical solution — no guessing required.
Play it your way: tap a square and a number, pencil in candidates with Notes when a square could go two ways, and lean on the arrow keys and number row on a desktop keyboard. A wrong number glows red so you always know where you stand, and a clean, error-free solve earns a perfect score.
A new puzzle drops every day at midnight Eastern, and Sundays step up to a harder Edition with fewer clues. No app, no signup — play free in your browser, keep a streak, and race the daily leaderboard. More dailies: Crux, our clueless crossword, Tally, our number ledger, and Span, our geography game.