645 Checkerboard Karel Answer Verified May 2026

start // Initialize variables row = 1 column = 1

// Move to next column move() column = column + 1

while row <= 8 // Determine color based on row and column if ((row + column) mod 2 == 0) putB() // Black else putW() // White

start // Initialize variables row = 1 column = 1

// Move to next column move() column = column + 1

while row <= 8 // Determine color based on row and column if ((row + column) mod 2 == 0) putB() // Black else putW() // White