Washington Post Sudoku

About Washington Post Sudoku

This is the sudoku The Washington Post built for its games section at washingtonpost.com/games, alongside its crossword, Mini Meta, Keyword and Wridges. It is separate from the older Arkadium-run sudoku on games.washingtonpost.com. It is free to play in the browser.

Each day there are three grids: Easy, Normal and Hard. They are classic 9 by 9 sudoku with some numbers given; you place the rest so no number repeats in a row, column or 3 by 3 box. You can switch difficulty from the start screen or after you finish.

The game keeps a perfect score for solves made without help. You can take notes on the possible numbers in a cell at no cost, but checking for errors costs the perfect game, and revealing a cell keeps that day's solve out of your lifetime record. A weekly view lets you go back to earlier days, and signing in saves your scores and stats.

It suits regular sudoku players who want a clean daily grid from a newspaper, and beginners who can start on Easy and move up.

How to play Washington Post Sudoku

1. Open Sudoku and pick Easy, Normal or Hard for today's grid.
2. Select an empty cell and enter a number from 1 to 9.
3. Make sure no number repeats in its row, column or 3 by 3 box.
4. Switch to notes to pencil in the numbers a cell could still take.
5. Fill every cell to finish; avoid checks and reveals if you want a perfect score.

Tips

• Scan each 3 by 3 box for a number that has only one possible cell before you start taking notes.
• On Hard, fill in notes for the whole grid early; pairs and triples of candidates do most of the work.
• Use the week view to catch up on days you missed.
• Play Easy first if you are new: the same rules apply at every level, only the amount of help from the givens changes.

Questions