PQ: Practical Intelligence Quotient review. Classic Game Room presents a CGRundertow review of PQ: Practical Intelligence Quotient for PSP. Boxes and mazes and deathtraps and puzzles. A fantastic way to flex your brain, even if it does make you all nostalgic for its big brother, Intelligent Qube. PQ takes a more multifaceted approach to logic, though, putting you through a battery of tests to see just how clever you really are. Just watch out for the rent-a-cops. This video review features video gameplay footage of PQ: Practical Intelligence Quotient for PSP and audio commentary from Classic Game Room's TJ.