NOW WITH FOUR FREE PUZZLES AND MORE PUZZLES in PRO Version Huge thanks for your feedback and valuable comments which made this brain puzzle game better over time Top #10 Strategy App in United States, Canada, United Kindom, Japan, Netherlands, Belgium, India, New Zealand, Russia and Czech Republic #1 Strategy App in Ireland, Switzerland, Norway, Poland, Hong Kong, Turkey, Greece, Singapore, and Malaysia #1 App in Greece, Turkey, Hungary, Romania, Cyprus, Slovenia, Hong Kong and India Yay challenge - Extremely hard to get but exciting when you get it User review. Addictive - My brain hurts now haha User review. Compare your results globally and with Friends * In-game tips and to help user get started and continue with every puzzle* Build-in checks to ensure you follow the rules