Some puzzles requiring no knowledge of knot theory, just a careful
inspection of the patterns. A glimpse of the classification of
knots and a little about prime knots, crossing numbers and knot
Investigations based on an Indian game.
All you need for this game is a pack of cards. While you play the
game, think about strategies that will increase your chances of
This is a game for two players. You will need some small-square
grid paper, a die and two felt-tip pens or highlighters.
Does it matter where the target is put? Is there a good strategy
for winning? If you could choose your own numbers, what would be
the shortest possible trail?