Of all the puzzles that burden the newsagent's shelves it's the Grid Puzzles that dominate. In the final programme of his series on the history of Puzzling Chris Maslanka takes a long hard look at the two across, blank a, blank i, blank a, blank i, blank (fascinating!) world of grids from Sudoku to the Cryptic crossword. He talks to Don Manley about the appeal of the shapes and restrictions of the grid and the language of the cryptic clue. They discuss the grid puzzle's future, future dimensions and how they thrive and survive in the digital age.

Producer: Tom Alban. Show less