5 days ago
The latest in our series where we turn the tables on the torturers. Under the spotlight this time is the former maths professor Jason Crampton, AKA Jack and SerpentJack is a name that pops up in the Genius, the Guardian’s monthly advanced puzzle. Jac...
1 week ago
Click here to access the print version. Normal Sudoku rules apply, except the numbers in the cells contained within grey lines add up to the figures in the corner. No number can be repeated within each shape formed by grey lines. Continue reading...