Blunders.ai is an AI-powered chess improvement platform designed to make practice personal instead of generic. Rather than solving random puzzles, players connect their Chess.com account and Blunders automatically analyzes every game they play. Each night, the platform identifies critical mistakes that cost material or the game, then converts those exact positions into personalized puzzles so players can repeatedly practice the situations they struggle with most. Alongside powerful chess engine analysis, Blunders includes an intelligent AI coach that explains why mistakes happened, suggests stronger alternatives, and answers questions based specifically on the user's own games rather than offering generic advice. The platform also includes opening study tools, AI-guided practice games, and customized training plans that continuously evolve as new games are played. By combining advanced engine evaluation with conversational AI coaching, Blunders provides a highly individualized learning experience that helps beginners and experienced players eliminate recurring mistakes and improve more efficiently.