D4Chess ClubAI Chess Training for Club Players
The AI Coach That Learns Your Weaknesses
Analyzes your games, finds recurring patterns, and recommends theme drills — not generic tactics every app has.
Everything in the Free Plan
Same Free list as Pricing and FAQ.
Play vs Computer
All skill levels, 1000–3200 Elo
Opening Explorer
3,700+ openings with theory & ideas
Threat Overlay
Attacks, hanging pieces, king danger
Stockfish Analysis
Every move graded: best to blunder
5 Puzzles / Day
Theme drills by pattern — upgrade for unlimited
Chess Basics Course
Notation, piece movement, center control
Leaderboard & Events
Rankings, tournaments, clubs
3 AI Coaching Sessions / Month
Try the coach — then decide
Questions, Not Just Answers
The Socratic coach asks why you missed the threat. Premium weakness targeting routes you to theme drills. Personalized My Drills from your games are on the roadmap.
Try the AI Coach Free →3 free coaching sessions every month
Free vs Premium
One honest matrix. Roadmap stays roadmap. Monthly billing only.
- ✓Play vs Computer
- ✓Opening Explorer
- ✓Threat Overlay
- ✓Stockfish Analysis
- ✓5 Puzzles / Day
- ✓Chess Basics Course
- ✓Leaderboard & Events
- ✓3 AI Coaching Sessions / Month
Cancel anytime. 7-day money-back. Monthly only.
- Everything in Free, plus:
- ∞Unlimited AI Coaching
Socratic questions on every blunder
- 🎙️Voice Feedback
Hear the coach explain your mistakes
- 🧩Unlimited Puzzles
No daily cap — every theme, every band
- 🔬AI Walkthrough & Deep Analysis
Personalized explanations on key moments
- 📈Weakness Targeting
Recommended theme drills from your mistake patterns
- ⚔Tactics 101 Course
23 lessons on forks, pins, skewers, discoveries
- 📖Opening Principles Course
10 principles illustrated with grandmaster games
- 🎓All Future Courses
Included at no extra charge when they ship
- 🎯Personalized / My Drills
- 🔁Spaced Repetition (SM-2)
- ♟Opening Repertoire Trainer
- 🏁Endgame Fundamentals
- ⚡Attacking Chess
- ♜Positional Mastery
- 🏆Achievement Badges
- 🏟Club Tournaments
- 📱Native iOS & Android Apps
What the Training Feels Like
Process notes — not rating-gain guarantees.
"Finally an app that teaches me WHY a move is bad, not just WHAT the best move was."
Club player reviewing with the AI coach
"The threat overlay alone changed how I look at a position — I catch hanging pieces before I move."
Player using post-game review
"Three free coaching sessions was enough to feel the Socratic loop. I upgraded for unlimited walkthroughs."
Premium member
No credit card · Free forever · Upgrade anytime