Tantan Dai, from China, is one of the world’s fastest sudoku solvers. Anna Shechtman is an American crossword compiler. They speak to Kim Chakanetsa about the world of puzzles. Show more
Discover 11,128,835 listings and 282,612 playable programmes from the BBC
Tantan Dai, from China, is one of the world’s fastest sudoku solvers. Anna Shechtman is an American crossword compiler. They speak to Kim Chakanetsa about the world of puzzles. Show more