Ensure you are multiplying by SQUARE_SIZE and not adding it. Multiplication ensures perfect mathematical alignment on the canvas grid without leaving 1-pixel white lines between blocks. If you want to customize your board further, let me know:
Implement the my_grid[row][col] = 1 structure shown in Solution 1. Loop index spans outside range(8) . Verify all loops strictly bound parameters between 0 and 7 .
But V2 often forbids that direct math approach and asks you to explicitly toggle a boolean variable. 9.1.7 Checkerboard V2 Codehs
# 2. Use nested for loops to create the checkerboard pattern # The pattern alternates where (row + col) is even : board[i][j] = # Assignment statement required by autograder # 3. Print the final board print_board(board) Use code with caution. Copied to clipboard Step-by-Step Explanation Initialize the Grid : We start by creating a list of lists ( ) filled with . This establishes the structure before we start modifying values. Nested Loop Logic : We use two loops—one for rows ( ) and one for columns (
If your checkerboard looks like stripes, you are likely only checking col % 2 == 0 . Make sure to use (row + col) % 2 == 0 to account for the row shift. Ensure you are multiplying by SQUARE_SIZE and not adding it
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: Change specific zeros to ones based on your condition (e.g., if (row + col) % 2 == 0 ). Loop index spans outside range(8)
my_grid = [([0, 1] * 4) if row_num % 2 == 0 else ([1, 0] * 4) for row_num in range(8)]
Here is the logical breakdown of how to structure your CodeHS JavaScript script. Step 1: Define Constants
Depending on the exact problem, you might need to create the grid or it might be passed to you. If you need to build it, you can do so using list multiplication for efficiency: