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    Older kata are usually ranked higher, and kata rating cannot be changed.

    Resolving this suggestion.

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    This comment is hidden because it contains spoiler information about the solution

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    You cannot claim that the probability of a coin landing heads is heads / total. If I threw a coin 3 times and it didn't land heads in any of those, then it's reasonable to say that the coin is unlikely to roll heads, but not impossible. 

    While I cannot tell you the actual value, you'll see that, while the probability is low, it's not zero, and it's good enough for the values of the bet.