manwar/pwc-281.md

## pwc-281.md

      
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    The Weekly Challenge - 281

Early Bird Club members ONLY

Task 1: Check Color

Submitted by: Mohammad Sajid Anwar

You are given coordinates, a string that represents the coordinates of a square of the chessboard as shown below:

Write a script to return true if the square is white, and false if the square is black.
Example 1

Input: $coordinates = "d3"
Output: true

Example 2

Input: $coordinates = "g5"
Output: false

Example 3

Input: $coordinates = "e6"
Output: true


Task 2: Knight's Move

Submitted by: Peter Campbell Smith

A knight in chess can move from its current position to any square two rows or columns plus one column or row away. So in the diagram below, if it starts a S, it can move to any of the squares marked E.
Write a script which takes a starting position and an ending position and calculates the least number of moves required.

Example 1

Input: $start = 'g2', $end = 'a8'
Ouput: 4

g2 -> e3 -> d5 -> c7 -> a8

Example 2

Input: $start = 'g2', $end = 'h2'
Ouput: 3

g2 -> e3 -> f1 -> h2


Last date to submit the solution 23:59 (UK Time) Sunday 11th August 2024.