• Monochrom's Massive Multiplayer Thumb-Wrestling - Explains the basics as well as multi-player variations. Includes photographs.
• Samurai Thumbs - Describes how to play this game using helmeted thumb wrestlers as warriors. Includes some variations.
• Thumb Wrestling - Describes how to thumb wrestle, with a snake in the grass variation.
• Wikipedia - Thumb Wrestling - Description of how the game is played.

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