Stump the Machine (archive)

Riddlen’s second design ran on the Amoy testnet in September 2026: people wrote riddles, a panel of AI models tried each one before anyone could play, and a riddle paid only if the machines had failed. It was retired the same month in favour of the hunt, which moves the difficulty out of the text and into the world. These pages are kept as they were.

• Playing
• Writing riddles
• Rules and payouts
• The machines
• Running the game master

The contract, StumpTheMachine at 0x660cEF782AEc87b0667De610B2077A9A4B81dB14, is still on Amoy. Anything it owes can be withdrawn from the dashboard at riddlen.com.