Two players play the following game with a fair coin. Player 1 chooses (and announces) a triplet (HHH, HHT, HTH, HTT, THH, THT, TTH, or TTT) that might result from three successive tosses of the coin. Player 2 then chooses a different triplet. The players toss the coin until one of the two named triplets appears. The triplets may appear in any three consecutive tosses: (1st, 2nd, 3rd), (2nd, 3rd, 4th), and so on. The winner is the player whose triplet appears first.

What is the optimal strategy for each player? With best play, who is most likely to win?

Suppose the triplets were chosen in secret? What then would be the optimal strategy?

What would be the optimal strategy against a randomly selected triplet?

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