Killer Sudoku 1,020 is now available for puzzle enthusiasts. Click here to access the print version of this engaging logic puzzle. The rules are similar to normal sudoku, but with an added twist: the numbers in cells enclosed by dotted lines must add up to the figures indicated in the corners. Additionally, no number can be repeated within any shape formed by these dotted lines. To see the completed puzzle, purchase the next issue of the Guardian (for puzzles published Monday to Thursday). Solutions for Friday and Saturday puzzles are provided in either Saturday's or Monday's edition. Explore more on these topics: Life and style, Sudoku.
