Golden Thumb Learning Lab

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How Cindy's memory of a childhood game became Golden Tiaoqi

Recent Discoveries

Enning discovers how a quarter-circle can become part of a 3D pulley system.

Tianjing vs. the Most Stubborn Bug in Chinese Chess

Four questions, one imaginary number, and a missing bonus question

Subtitle: From √−48 to a 3D pulley system, one afternoon with Enning

Donald Sheng lost his first serious game of Golden Army to Cindy. And he couldn't have been happier.

Twenty triangle centers, four pentagons rendered, and a word Donald could barely keep to himself.

During the years at home, thousands of moments shape a child.

Most are forgotten.

Some change everything.