ChessNest: AI Chess & Puzzles

ChessNest is a chess learning platform where you play against AI, build skills with puzzles, and improve through analysis. From first-time players to experienced ones, enjoy games, puzzles, lessons, and analysis all in one place. Play in English or Korean, and switch languages anytime. ■ Play vs AI • Choose from a range of AI opponents, from beginner to master level • AI that thinks at a human pace — never too fast, never too slow • Bullet, Blitz, Rapid, and Classical time controls ■ Play Online • Live games against other players online • Glicko-2 ratings pair you with opponents at your level • Send friendly challenges or use quick matchmaking ■ Puzzles & Puzzle Arena • Over 470,000 tactics puzzles to sharpen your game sense • Focus on themes like pins, forks, and discovered attacks • Test yourself in Puzzle Arena — 3-Minute Rush or Survival — and compete on the leaderboard ■ Structured Learning • Chess Basics: step-by-step lessons on the fundamentals • Practice: pick your weakest themes and train them • Coordinate Trainer and Opening Explorer ■ Game Analysis & AI Coach • In-depth analysis of your games with the Stockfish engine • Spot mistakes, blunders, and key moments at a glance • Your AI Coach explains what to improve in plain language ■ Tournaments & Community • Arena, Swiss, and other tournament formats • Leaderboards and player profiles ■ Who it's for • Beginners who want to learn from the ground up • Intermediate players ready to level up with puzzles and analysis • Anyone who enjoys a quick game whenever they like Make your first move today — and watch your chess grow with ChessNest.