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Red and Blue Square - is a simple game for attentiveness. It is not difficult to play and have fun. Test your attentiveness.The rules are very simple:1. Click on the red square and move it by holding your finger on it and avoiding contact with blue squares.2. Do not touch the black edges.3. If you hang on for more than 30 seconds - you're a genius.They say that military pilots can do more than 2 minutes.