El Tiempo Sudoku

About El Tiempo Sudoku

El Tiempo's sudoku page invites readers to exercise their minds with a free online sudoku, cada día uno diferente: a different one every day. The puzzle is played inside the page, in a game frame supplied by iWin, which serves Uclick's Sudoku Classic en Español.

It is a classic 9 by 9 sudoku. The aim is to fill the grid so that every row, every column and every 3 by 3 box contains the digits 1 to 9 exactly once, starting from the numbers already given. The bar above the grid shows the game's name and the date of the puzzle, so you can see that the grid is the one for today.

The controls are in Spanish. A keypad of the digits 1 to 9 sits beside the grid with two modes: Apunte, to write a digit in a square, and Notas, to pencil in candidates. A timer runs above the grid, a difficulty rating is shown with stars, and buttons let you print the puzzle, read the help, change settings and see game information.

The game is free and needs no account. It sits in El Tiempo's games and entertainment section, so it suits readers who want one number puzzle a day alongside the news, and Spanish speakers who prefer a sudoku with Spanish controls.

How to play El Tiempo Sudoku

1. Open El Tiempo's sudoku page; today's dated grid loads in the game frame.
2. Click an empty square in the 9 by 9 grid.
3. With Apunte selected, click a digit on the keypad to write it in the square.
4. Switch to Notas to pencil in the digits that could still go in a square.
5. Fill the grid so every row, column and 3 by 3 box has the digits 1 to 9 once; a new grid comes the next day.

Tips

• Scan each box for the digits it is missing, then check rows and columns to place them.
• Look for squares where only one digit is possible.
• Use Notas for candidates when the easy placements run out, and clear them as you place digits.
• Use the print button if you prefer to solve on paper.

Questions