Hey Product Hunt! Shane here, solo founder of D4Chess.Club.
I built this because I kept hitting the same wall every club-level chess player hits: I knew I was making mistakes, but no tool could tell me which mistakes I kept repeating or why. Chess.com has 200M users and endless puzzles. Lichess is free and incredible. Neither one sits down with you after a game and says "here's your pattern, here's how to fix it."
So I built that tool. D4Chess.Club analyzes your game history, surfaces your recurring error patterns, and coaches you through them with AI-powered walkthroughs Socratic-style, not just "the computer plays Nf6 here."
D4 Chess Club is a free AI chess trainer that teaches you why your moves are wrong — not just what the best move was. Play vs computer (1000–3200 Elo), get Stockfish move-by-move analysis, drill your weak tactical patterns, and train with an AI Socratic coach that asks questions instead of handing you answers. Free to start. No credit card. Built for club players who actually want to improve.
