A text Sudoku game has been launched, allowing users to complete puzzles by texting missing numbers to a shortcode number.
The game has been released by The Times newspaper and mobile and wireless services company Divine. Puzzles are printed in the newspaper and players can text in the numbers to solve the puzzle.
It costs £1 to play. The game will run indefinitely and there is a chance to win £1000 everyday.
Mobile Operator O2 Active released a Suduko puzzle service in August this year which allows users to download suduko games to their handset for 50p. Happy Puzzling!