Block By Block expands your spatial problem-solving skills as you combine seven puzzle pieces to construct three-dimensional structures depicted on the 60 challenge cards. The puzzle pieces are the same as the famous Soma Cube of the 1970s. This logic game is tough - and very fun! Features: - Type: Brainteasers - Skill: Logic and Problem Solving - Age: 8 and Up - Players: 1 Player - 60 Challenge Cards with Hints and Solutions - 7 Puzzle Pieces - Game-Go Bag