Item(s): P9
Method / Hint
Discussion
Predecessor / Cross-Test Exposure
High Confidence
Mandates Classification Change
BrainDen — P9 Puzzle Discussion
Discovered: 8/13/2026
Source Date: 1/1/2011
Assessment
BrainDen, a public puzzle and brain-teaser website, hosts a discussion thread addressing a problem matching Power Test item P9 (Mega M31 predecessor). The thread discusses the problem structure and mathematical approach. This evidence upgrades P9's classification from Medium to High.