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Guess My Rule Guess My Rule games are games in which one person thinks up a secret rule, and then gives clues by stating some examples of some that follow the “rule,” and examples of something that doesn't follow the “rule.” Next, rule-guesser(s) try to discover the rule by trying predict whether their own examples follow the rule or not. After the rule-maker answers a few questions from the rule-guesser(s), the rule guesser(s) try to guess the rule.
For example, The secret rule might be that it is an integer that is a prime number. The rule-maker Starts with “2 follows my rule, but 4 does not”. The rule-guesser than asks “Does 3 follow the rule?” and is told “3 follows my rule” Or “15 follows the rule, right?” which the rule-make will respond with “No, 15 does not follow the rule”. The guesser will eventually win by guessing the rule or lose by giving up.