Two of the (not quite) same kind! 
 
The puzzle pieces of IQ Twins are 2 peas in a pod, but not 2 of a kind! 10 puzzle pieces form 5 colour pairs. One piece will only fit on the board at 90° angles, while its twin requires 45°. IQ Twins comes in a handy travel case and includes 120 challenges from easy to expert, making it great for both kids and adults. Are you ready for this brain-training puzzle?  
 
# of Challenges: 120
# of Players: 1
Inside the Box: Game board with lid, 10 puzzle pieces, booklet with 120 challenges and solutions.
Playing IQ Twins stimulates the following cognitive skills:
Concentration
Problem Solving
Spatial Insight