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BGonline.org Forums
Balls * Spoiler
Posted By: Joe Russell In Response To: Balls (Ray Kershaw)
Date: Saturday, 12 June 2010, at 12:18 a.m.
Y knows that X would only know the color of his ball if both Y and Z were black. Z knows that Y, knowing at least one of them must be red, could only know the color of his ball if Z were black. Therefore,he announces his color, red
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