easy   Brainteasers

Card Turnover

A release-checked easy problem for training Cards, Games.

Question

You play a game with a friend where there are $10$ cards face up from a standard deck of $52$. The first player must turn over any card face down, but then the opponent must turn any single card or two adjacent cards face down on his turn. On any subsequent turn, either player must turn over a single card or two adjacent cards. If the player who flips the final card wins, would you want to go first or second? Enter $1$ for first and $2$ for second.

Practice focus

This Brainteasers problem is tagged Cards, Games. State the random variables and conditioning information explicitly, then check the result against boundary cases before opening hints or a solution.

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Brainteasers · Marshall Wace, Akuna