645 Checkerboard Karel Answer Verified Page

command to color the current square. The core logic requires alternating between two colors (e.g., black and red) as Karel moves across a row. Handle Rows : Create a paintRow() function that uses a while(frontIsClear()) loop. This ensures the code works on any world width. Vertical Movement

The most reliable way to solve this is to think about each row individually while keeping track of whether the next row should start with a beeper or a blank space. 645 checkerboard karel answer verified

if (frontIsClear()) move();

: Karel moves up and moves once before placing the next beeper. command to color the current square

turnRight();