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ConradCHESS .. water pistol duel .. logic .. IM Conrad Goodman

water pistol duel
Two gunfighters, each 50% accuracy, have a water pistol duel.
If they exchange alternate water squirt shots until one is hit,
what is the hitting probability for the person that shoots first?

Congratulations to these solvers as of
Brian Foote, Albert Frank, Joshua Green, LW Luk and Steve Steppe.

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