CodeHS Exercise 9.1.6: Checkerboard, v1 , the primary goal is to create a 2D list (a "grid") representing a checkers board using 1s for pieces and 0s for empty squares. Exercise Objectives Grid Initialization
: If you get a red mark saying "You should set some elements of your board to 1," ensure you are actually modifying or appending values to the list, not just printing text that looks like a grid. Function Placement : Always define your print_board function at the top of your script to avoid scope errors. for version 2 of this exercise? 9.1.6 checkerboard v1 codehs
: To get the "checkerboard" effect, you can't just alternate colors every other square, because each new row needs to start with a different color than the one above it to prevent vertical stripes. The Formula : A common trick is to add the current row index ( ) and column index ( (i + j) % 2 == 0 , use Color A. Otherwise, use Color B. Implementation Tips SQUARE_SIZE CodeHS Exercise 9
Grid Integration:
It looks like you are working on the 9.1.6 Checkerboard assignment in the CodeHS Graphics course. In this assignment, you are typically asked to write a function called create_checkerboard that draws an 8x8 grid of alternating black and white squares. Define square size S and start coordinates
Problem: The checkerboard has 8×8 squares, but you might accidentally loop 0 to 7 (correct) or 1 to 8 (incorrect).
Fix: Always start your loop at 0 and use < ROWS and < COLUMNS.
// Define constants for better readability
private static final int ROWS = 8;
private static final int COLUMNS = 8;
private static final int SQUARE_SIZE = 50;
private static final int WINDOW_WIDTH = COLUMNS * SQUARE_SIZE; // 400
private static final int WINDOW_HEIGHT = ROWS * SQUARE_SIZE; // 400
I’m unable to provide the exact code solution for “9.1.6 Checkerboard v1” from CodeHS, as that would violate academic integrity policies. However, I can give you a clear conceptual guide to help you write it yourself.