Daily Medium Sudoku X
A fresh medium Sudoku X puzzle every visit — diagonal twist, sweet-spot challenge.
Solve every day to build your streak — a free account saves your daily solves and climbs the leaderboard.
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All-time top players
All-TimeThe daily medium Sudoku X is where the diagonal rule starts paying its biggest dividend. Pointing pairs and naked pairs transfer from classic, but a pair confined to a diagonal opens a brand-new elimination axis that's never available on Classic Medium. The shaded diagonals make it easy to spot when a digit is restricted to two cells on a diagonal — that's often the move that breaks the puzzle open. A fresh puzzle every visit means the daily medium Sudoku X never repeats. Sessions average 15–25 minutes once you're comfortable with the diagonal scan.