AMC 8 1993 Problem 25

A checkerboard consists of one-inch squares. A square card, $1.5$ inches on a side, is placed on the board so that it covers part or all of the area of each of $n$ squares. The maximum possible value of $n$ is $\text{(A)}\ 4\text{ or }5 \text{(B)}\ 6\text{ or }7 \text{(C)}\ 8\text{ or }9 \text{(D)}\ 10\text{ or }11 \text{(E)}\ 12\text{ or more}$