9.1.7 Checkerboard V2 Codehs [2021] May 2026

The CodeHS 9.1.7: Checkerboard V2 exercise is a fundamental lesson in manipulating 2D lists (nested lists) using nested for loops. While Version 1 often focuses on just filling the board, Version 2 requires a more complex logic: creating a alternating pattern of 0s and 1s, similar to a physical checkerboard. 🛠️ Problem Logic

Common Issues & Fixes

• Squares not aligning: Ensure starting X/Y are correct (often 0,0 or centered)
• Wrong colors: Check if your colors are spelled correctly ("red", "black", etc.)
• Incorrect pattern: Verify the (row + col) % 2 logic
• Missing graphics import: Make sure you're in a graphics program (not console)

Step-by-Step Solution Plan

Let’s assume the following constants (typical in CodeHS): 9.1.7 Checkerboard V2 Codehs

You will need one loop for the rows and another inside it for the columns. javascript The CodeHS 9

private static final int ROWS = 8;
private static final int COLS = 8;
private static final int SQUARE_SIZE = 50;

• Grid size: The 8x8 grid size provides a clear and recognizable checkerboard pattern. However, students may experiment with different grid sizes to explore how the pattern changes.
• Color selection: The choice of black and white as the primary colors provides a high-contrast and visually striking pattern. Students may choose to experiment with other color combinations to create different effects.
• Symmetry: The checkerboard pattern relies on symmetry to create a sense of order and balance. Students must ensure that their implementation maintains this symmetry.

9.1.7 Checkerboard, v2 I got this wrong, and I can't ... - Brainly Squares not aligning : Ensure starting X/Y are