WHAT IT IS A clever, easy and addictive game in which you have to fit wooden pieces on a puzzle board. HOW MUCH Free COMPATIBLE WITH iPhone, iPad and iPod touch, requires iOS 8.0 or later; Android 5.0 ...
After nearly two full days of note taking and digesting advanced research topics, I opted for a slight break for my brain. In a symposium entitled "Design of Mechanical Puzzles," various speakers ...