Cool Circuits™ really does live up to its name — COOL!

Lay down a puzzle card, solve the challenge by making a loop, and watch the board light up!

Cool Circuits™ has 40 different challenges ranging from student to expert. Can you solve them all?

This online version has a light-up board, 8 fluorescent 3D puzzle pieces, and 40 challenge cards.

This puzzle emphasizes spatial reasoning and abstract thinking.