9.1.6 Checkerboard V1 Codehs -

: Ensure your loop conditions use strict less-than signs ( row < NUM_ROWS ) rather than less-than-or-equal-to signs ( row <= NUM_ROWS ). Using <= will cause the program to attempt to draw a 9th row and column, throwing off the canvas layout.

Karel starts at position (1, 1) facing East. The world has variable dimensions (rows and columns). Karel must fill alternating squares with beepers, like a checkerboard. 9.1.6 checkerboard v1 codehs

Ensure your loops run from 0 to NUM_ROWS - 1 . Using <= instead of < will often result in the board drawing off the screen. : Ensure your loop conditions use strict less-than

: The center of the first circle is at radius . Every subsequent circle is moved by 2 * radius (the diameter). Ensure your loops run from 0 to NUM_ROWS - 1

To solve this efficiently, we cannot simply write code for one row and copy-paste it. We need a general algorithm that handles the pattern. Core Components of the Solution

The difficulty lies in alternating the starting position of the beeper on every row. If Row 1 starts with a beeper, Row 2 must start with an empty space, Row 3 with a beeper, and so on. 2. Breaking Down the Logic (Algorithm)

function printBoard(board) for (let i = 0; i < board.length; i++) console.log(board[i].join(" "));