Sudoku

The New York Times' sudoku: the digits 1 to 9 must appear once in every row, column and three-by-three box of a nine-by-nine grid. New easy, medium and hard puzzles are posted each day, with a notes mode for pencil marks and an optional auto-candidate helper.

Category

Logic, Math

How you play

Deduction

Languages

Any (no reading needed)

Daily puzzle

Yes

Unlimited mode

No

Made by

The New York Times

Website

nytimes.com