Alcoding September Challenge 2021 was an online competitive programming contest where the contestants were made to solve five problems of increasing difficulty in a span of three hours. The contestants had to write a solution in a programming language of their choice. The additional constraints included time taken for execution of the program, maximum memory used by the program and such factors. The judging was automated by running the contestant’s code with the test cases designed by club members, and comparing the output of their code with the expected output. Manzood Naqvi emerged as the winner followed by Aryan V S and Mohit Gaggar. The challenge was conducted on September 11, 2021 by PES Alcoding Club on Hackerrank platform which included the automated judging process.