9.1.7 Checkerboard V2 Codehs

9.1.7 Checkerboard V2 isn’t just about drawing a pretty pattern. It teaches:

Show how to do this in if you are in the Nitro/Java course 9.1.7 Checkerboard V2 Codehs

# This is the logic for the checkerboard pattern: # If the sum of the row and column indices is even, make it red. # Otherwise, make it black. if (row + col) % 2 == 0: pen.color("red") else: pen.color("black") if (row + col) % 2 == 0: pen

9.1.7: Checkerboard V2 is a fundamental test of your ability to manipulate 2D lists (nested lists) using nested loops and conditional logic. While V1 typically focuses on simple row replacement, V2 requires a precise alternating pattern of 0s and 1s across the entire grid. Core Logic: The Alternating Pattern The primary challenge is ensuring that if a cell at (row, col) is a 1, the adjacent cells (up, down, left, right) are 0s. The Modulus Trick The Modulus Trick