CombinatoricsDifficulty 3.0AMC 10/12Find the answerCanada
Anne and Brenda play a game which begins with a pile of n toothpicks. They alternate turns with Anne going first. On each player's turn, she must remove 1, 3 or 4 toothpicks from the pile. The player who removes the last toothpick wins the game. For which of the following values of n does Brenda have a winning strategy? (In a game, a player has a winning strategy if, regardless of what the other player does, there are moves that she can make which guarantee that she will win.)
(A) 31 (B) 32 (C) 33 (D) 34 (E) 35
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