Bemærk: Kan ikke leveres før jul.
A collection of mathematical puzzles which include twists on old favorites, "severe" difficulty puzzles, and puzzles that were solved or remain unsolved.
Bemærk: Kan ikke leveres før jul.
Research in maths is much more than solving puzzles, but most people will agree that solving puzzles is not just fun: it helps focus the mind and increases one's... Læs mere