HP MoR: Cloak & Hat has Obliviated Blaise Zabini's mother

Created by gwern on 2012-04-08; known on 2015-01-01; judged wrong by PlacidPlatypus on 2015-03-20.

• gwern estimated 5% on 2012-04-08
• PlacidPlatypus estimated 1% and said “Is there any context to make this likely?” on 2012-04-19
• Oscar_Cunningham estimated 10% on 2012-04-20
• PlacidPlatypus   judged this prediction wrong on 2015-03-20.

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