Guardian introduces Killer Sudoku with new dotted line rules
The Guardian has published a new puzzle format called Killer Sudoku that uses standard grid rules plus specific sum constraints for numbered shapes.
Puzzle mechanics explained
Normal sudoku rules apply to the entire grid. Numbers inside cells marked by dotted lines must add up to a figure shown in the corner. No number can be repeated within any single shape formed by those dotted lines.
Where to find solutions
Readers can see the completed puzzle by buying the next issue of the Guardian. Solutions for Friday and Saturday puzzles appear in either Saturday or Monday editions. Puzzles are published from Monday through Thursday each week.
Reported by one outlet
Only one outlet has published this. Nothing here has been checked against a second report, so read it as that outlet's account and follow the link below for the original.
Reported by
1 independent outlet. Headline as published. Links open the original report.