Can you explain the strategy for winning this game with any target?
The game uses a 3x3 square board. 2 players take turns to play,
either placing a red on an empty square, or changing a red to
orange, or orange to green. The player who forms 3 of 1 colour in a
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
This game offers you an opportunity to improve your ability to estimate angles.
You can either play on your own or challenge a friend.
In both cases you will have 10 goes.
The closer you get to the target angle the more points you will score.
There are three levels:
Level $1: 0-90^\circ$
Level $2: 0-180^\circ$
Level $3: 0-360^\circ$
Full Screen Version