916 Checkerboard V1 Codehs Fixed Online

To draw a checkerboard, we use nested loops. The logic follows these steps:

This solution uses a nested loop to iterate over each square on the checkerboard. The color of each square is determined by the sum of its row and column indices. If the sum is even, the square is white; otherwise, it is black.

The set_canvas_color and create_canvas functions are used to initialize the canvas with a white background. The rect function is used to draw each square, and the fill function is used to set the color of each square. 916 checkerboard v1 codehs fixed

If the assignment specifically requires while loops (where the bug usually exists), here is the fixed while loop implementation.

The Bug: Students often write while count > 0: but forget to write count = count - 1. The Fix: Ensure the counter decrements at the end of the loop. To draw a checkerboard, we use nested loops

# WHILE LOOP VERSION (Fixed)
import turtle
t = turtle.Turtle()
t.speed(0)
SIZE = 50
# Starting coordinates
x = -200
y = 200
# Row Counter
row_count = 8
while row_count > 0:
    # Column Counter
    col_count = 8
# Reset X for new row
    x = -200
while col_count > 0:
        # Draw Logic (simplified)
        t.penup()
        t.goto(x, y)
        t.pendown()
        t.begin_fill()
        # Draw square helper logic
        for i in range(4):
            t.forward(SIZE)
            t.left(90)
        t.end_fill()
x += SIZE
        # FIX: Decrement col_count
        col_count -= 1
y -= SIZE
    # FIX: Decrement row_count
    row_count -= 1

function start() 
    var squareSize = 50;
    var numRows = 8;
    var numCols = 8;
for (var row = 0; row < numRows; row++) 
    for (var col = 0; col < numCols; col++) 
        var x = col * squareSize;
        var y = row * squareSize;
var color;
        if ((row + col) % 2 === 0) 
            color = "red";
         else 
            color = "black";
var square = new Rectangle(squareSize, squareSize);
        square.setPosition(x, y);
        square.setColor(color);
        add(square);

You are tasked with creating a checkerboard pattern using a grid of squares. The board should have 8 rows and 8 columns of alternating black and red squares. The top-left square should be red.

This is "v1" of the problem, meaning it likely expects a straightforward approach using nested loops and conditionals, without more advanced optimizations. function start() var squareSize = 50; var numRows