Does your formula (row + col) % 2 correctly alternate 0s and 1s? Did you print the result as space-separated integers?

The most fundamental aspect of this exercise is understanding the pattern itself. A classic checkerboard alternates between two distinct values (like 0 and 1). This alternating relationship is the key to generating it programmatically.

Even with the correct code, students often hit frustrating roadblocks. Here’s a quick troubleshooting table: