Four levels of play</br>60 challenges with solutions</br>Self-contained?? magnetic game board</br>Learning skills:  deductive reasoning?? problem solving?? manipulative development</br>Ideal for travel</br></br>Product Description</br></br>Grid Works is a brain-bending visual challenge that pushes players to find a solution through deductive reasoning.</br><br/>http://www.amazon.com/gp/product/B0007LDI5G