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You are playing outside after dark with a friend. You have a torch, switched off. Your friend creeps round you very quietly and then stands still. He is almost invisible, but you can just see a small glint of reflection. You swing round the torch (clockwise) and turn it on. Either you find him, or you have to do it again.
To start, first choose a level of difficulty. The glint appears to show where your friend is. Choose the correct angle to swing the torch, and watch. If you get it wrong, try again; your friend won't move. If you get it right, he creeps round to a new place.
You can choose a different level of difficulty if you want to make it harder or easier. The earlier choices are easier than the later ones. Some are very hard indeed.
© Jo Edkins 2008 - Return to angles index