The Guardian has published Killer Sudoku puzzle number 1,040, offering readers a new challenge in the popular number-placement game. The puzzle follows standard sudoku rules, with an added twist: numbers in cells contained within dotted lines must add up to the figure shown in the corner of each shape. Additionally, no number can be repeated within any shape formed by the dotted lines.
How to Play Killer Sudoku
In this variant, players must fill a 9x9 grid so that each row, column, and 3x3 box contains the numbers 1 through 9 exactly once. The dotted-line cages impose an extra constraint: the sum of the digits inside each cage must equal the small number printed in the cage's corner. For example, a cage with a corner number of 15 could contain digits like 7 and 8, or 6 and 9, but not 7 and 7, since repetitions are forbidden within the cage.
Accessing the Puzzle and Solutions
The puzzle is available in print form, and readers can click here to access the print version. For puzzles published Monday through Thursday, the completed solution appears in the next issue of the Guardian. Solutions to puzzles published on Friday and Saturday are provided in either Saturday's or Monday's edition, giving solvers a window to attempt the challenge before checking their answers.
Why Killer Sudoku Appeals to Solvers
Killer Sudoku has gained a dedicated following among puzzle enthusiasts because it combines logical deduction with arithmetic. Unlike standard sudoku, which relies solely on placement rules, Killer Sudoku requires solvers to consider sums, making it a more complex and engaging experience. The Guardian's regular publication of these puzzles ensures a steady stream of content for both beginners and experienced players.
To see the completed puzzle, readers must purchase the next issue of the Guardian, as solutions are not provided online. This encourages engagement with the print edition and maintains the puzzle's exclusivity. Whether you are a seasoned solver or new to the format, Killer Sudoku 1,040 offers a stimulating mental workout.
