Ten dice, sum divisible by six

You roll ten fair 66-sided dice and add the results. What is the probability that the total is divisible by 66?

Show hints (2)+
  1. A fair die is uniform over residues mod 66.
  2. Fix nine dice; the tenth cycles the total through all six residues equally - so each residue has probability 1/61/6.

Answer

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0.1667 (± 0.001)

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Asked at: Jane Street, Citadel

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