# Coding Challenge #119 - AI Pong Player

DevFeed: [Coding Challenge #119 - AI Pong Player](<https://devfeed.tech/articles/coding-challenge-119-ai-pong-player-29195.md>)

Original publisher: [Read original article](<https://codingchallenges.substack.com/p/coding-challenge-119-ai-pong-player>)

Author: John Crickett

Published: 2026-05-09T08:01:53Z

Content type: tutorial

Language: en

Sources: [Coding Challenges](<https://devfeed.tech/sources/coding-challenges.md>)

Topics: [Code Challenge](<https://devfeed.tech/topics/code-challenge.md>), [Reinforcement learning](<https://devfeed.tech/topics/reinforcement-learning.md>), [coding](<https://devfeed.tech/topics/coding.md>), [Deep neural networks](<https://devfeed.tech/topics/deep-neural-networks.md>), [NumPy](<https://devfeed.tech/topics/numpy.md>)

Tags: [ai](<https://devfeed.tech/tags/ai.md>), [coding](<https://devfeed.tech/tags/coding.md>), [games](<https://devfeed.tech/tags/games.md>), [neural-networks](<https://devfeed.tech/tags/neural-networks.md>), [python](<https://devfeed.tech/tags/python.md>), [reinforcement-learning](<https://devfeed.tech/tags/reinforcement-learning.md>)

## AI overview

A coding challenge guides readers through building a reinforcement learning agent that learns to play Atari Pong from raw screen pixels. It introduces policy gradients, the REINFORCE algorithm, returns, stochastic policies, and variance reduction, with Python and NumPy as prerequisites.

## Source excerpt

This challenge is to build your own AI pong player with reinforcement learning.