916 Checkerboard V1 Codehs Fixed [exclusive]

Many users encounter a "red" error in the autograder stating: "You should set some elements of your board to 1; You will need to use an assignment statement." . This occurs because:

var square = new Rectangle(SQUARE_SIZE, SQUARE_SIZE); square.setPosition(x, y); square.setFilled(true);

for row in board: print(' '.join(str(x) for x in row)) 916 checkerboard v1 codehs fixed

x += SIZE # FIX: Decrement col_count col_count -= 1

. If you just print strings or append a row of ones, you'll likely see errors like: "You should set some elements of your board to 1" "You will need to use an assignment statement" Many users encounter a "red" error in the

The easiest way to decide if a cell should be a 0 or a 1 is to add its row index and column index together:

Solved 9.1.6: Checkerboard, v1 Save 1 # Pass this function a The most common mistake in "v1" is only

: The middle rows (indices 3 and 4) are skipped by the if statement, ensuring they remain empty as requested. Common Pitfall

In CodeHS’s JavaScript graphics environment, you don't just print a pattern—you actually draw the board. The core logic remains the same, but you'll use graphics functions like Rect to create each square. The same (row + col) % 2 conditional is used to choose the color of each tile.

The most common mistake in "v1" is only checking if the column is even or odd. If you do that, every row will look identical, resulting in vertical stripes rather than a checkerboard. Use the sum of the row and column indices. If (row + col) is even , color it Red. If (row + col) is odd , color it Black. The Corrected Code (JavaScript/Karel Style)

function at the very end to display your final, modified grid.