Sergiy Bondaryev

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How a Transformer Plays Tic-Tac-Toe

Deep Learning

An interactive guide to how attention, embeddings, and positional encoding work together to predict the next move.

LeNet-5: A Visual Guide

Deep Learning

Interactive visualizations of the pioneering neural network that learned to read handwritten digits for banks.

Solving Mastermind with Maximum Entropy

Information Theory

Using information theory to find optimal guesses in Mastermind.

Chess OCR: From Data to Deployment

Project

Building a chess position recognition system from data collection to browser deployment.

Why Neural Networks Need He Init, Clipping, and Momentum

Machine Learning

A step-by-step interactive example exploring common neural network training problems and their solutions.

Big O Notation: An Interactive Guide

Algorithms

Building intuition to recognize time complexity from code patterns.