2023 AMC 10B Problems/Problem 10

Revision as of 16:26, 15 November 2023 by Yourmomisalosinggame (talk | contribs) (Solution 1)

Solution 1

First, note that since the rectangle covers 2 squares, we only need to guess squares that are not adjacent to any of our other guesses. There are only two ways to do this: one with $5$ guesses, and one with $4$. Since the problem is asking for the minimum number, the answer is $4$.

-yourmomisalosinggame (a.k.a. Aaron)