V1 Codehs - 9.1.6 Checkerboard

: You need an outer loop for rows and an inner loop for columns to access every "cell."

if (frontIsClear()) move(); col++; else break;

for row in range(8): # Loop for each row (0-7) new_row = [] # Create an empty list for the current row for col in range(8): # Loop for each column (0-7) # Step 3: Determine if this cell should be a 1 or a 0 if row < 3 or row > 4: new_row.append(1) # Top 3 or bottom 3 rows get a 1 else: new_row.append(0) # Middle 2 rows get a 0 # Step 4: Add the completed row to the board board.append(new_row) 9.1.6 checkerboard v1 codehs

Once you've mastered "Checkerboard, v1," you can challenge yourself further:

A checkerboard alternates colors. If you look at the coordinates (row, col) : : You need an outer loop for rows

: Create an empty list called board and fill it with eight rows of eight zeros.

Alternatively, if you want a more visual representation: CodeHS expects a specific output format

Below are two versions of the Python code to achieve this.

CodeHS expects a specific output format. The print(" ".join(map(str, row))) line is an efficient way to convert each integer 0 or 1 in a row into a string, and then join them together with a space in between.

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function start(): turn off beeper auto-placement var row = 1 while (front is clear or left is clear): placeRow(row) if (front is clear): moveToNextRow() row++