To solve this efficiently, we cannot simply write code for one row and copy-paste it. We need a general algorithm that handles the pattern. Core Components of the Solution

By checking if (r + c) is divisible by 2 using the modulo operator ( % ), you can cleanly alternate colors. Step-by-Step Code Implementation

The ( row ) tracks the vertical progression. It starts at row 0 and moves down to row 7.

This handles the alternating start position needed for a checkerboard. 5. Tips for Success and Debugging

Understanding the simple logic in v1—building rows and appending them to a list—is crucial for tackling those more complex patterns. Mastering this foundational exercise sets you up for success in the rest of the project. Good luck, and happy coding!