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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 $3: 0-360^\circ$