Fiendish Sudoku: What the Hardest Difficulty Level Really Means
Plus Fiendish Sudoku is the top difficulty rating in The Times' daily Sudoku, sitting above Easy, Medium, Hard and Difficult. A Fiendish puzzle can't be cracked with basic scanning alone —…
Fiendish Sudoku is the top difficulty rating in The Times' daily Sudoku, sitting above Easy, Medium, Hard and Difficult. A Fiendish puzzle can't be cracked with basic scanning alone —…