Tactical Training
Puzzles calibrated to your rating. The system selects the themes you most need to work on and adjusts difficulty automatically. Filter by theme, opening, game phase, or sequence length.
AdaptiveChess training
ChessGrade is a free chess training platform with 3.1 million tactical puzzles, an adaptive rating system, game analysis with Stockfish and AI, and much more.
Features
Six complementary training modules, each focused on a different chess skill.
Puzzles calibrated to your rating. The system selects the themes you most need to work on and adjusts difficulty automatically. Filter by theme, opening, game phase, or sequence length.
AdaptiveRepeat the same puzzle set multiple times, with progressively shorter time each cycle. After a few cycles, tactical patterns become embedded in long-term memory.
Pattern recognitionPuzzles from easiest to hardest. One mistake and it's over — you only have one hint available. Your personal record is saved so you can always try to beat it.
ChallengeIdentify attacked pieces, undefended pieces, weak squares, and board coordinates without moving the pieces. Four modes in timed sequences.
CalculationPractice classic endgames against Stockfish. Master queen and king vs king technique, learn king-activity principles and opposition.
TechniqueImport your games from Chess.com or Lichess and receive move-by-move error classification by Stockfish and a study plan generated by Gemini.
Stockfish + GeminiHow it works
In less than two minutes you're already training.
Free signup with email and password. No credit card needed. Your account lasts forever on the free plan.
Daily tactics, Woodpecker, Progressive, Visualization, Endgames, or Analysis — choose where you want to train today.
The adaptive rating system automatically adjusts difficulty. Track your progress in real time.
Import a PGN from Chess.com or Lichess and receive detailed move-by-move analysis with AI recommendations.
Learn more
Practical guides on how to train more efficiently.
Training method
How systematic puzzle repetition turns tactical recognition into something automatic and instinctive.
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Tactics
Most players solve puzzles passively and don't improve. See the active method that actually works.
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Beginners
Fork, skewer, pin, discovered check — the patterns that appear in almost every chess game.
Read article →
Analysis
Analysis without the engine first, then Stockfish. The process that separates improvers from the stagnant.
Read article →
Endgames
The most neglected phase of amateur study — and also the most decisive.
Read article →
Interactive demo
No account needed. Solve a real tactical position from the ChessGrade database directly in your browser.
Try puzzle →
FAQ
Yes. The free plan gives access to Tactical Training, Woodpecker, Progressive Mode, Visualization, and Endgame Training at no cost. Premium unlocks unlimited game analysis, a detailed profile, and removes ads.
No. ChessGrade works 100% in the browser on any computer with Windows, macOS, or Linux. There is no app to download.
Each puzzle has a rating calculated by the Glicko-2 system, based on the performance of thousands of players. The system learns your level and delivers puzzles calibrated to your optimal development zone.
It's a training technique described in the book Pump Up Your Rating by Axel Smith. It involves solving a fixed set of puzzles and repeating it, getting faster each cycle. Learn more in the dedicated article.
You import a PGN or paste the text directly. Stockfish analyzes each move and Gemini generates a report with critical moments, recurring patterns, and study suggestions. The system's limits are described in the methodology.
The database has 3.1 million puzzles covering all major tactical themes: fork, skewer, pin, discovered check, double check, deflection, sacrifice, interference, zugzwang, and dozens of others.
Yes. All your puzzle history, rating, streaks, practiced themes, and analyzed games are saved to your account.
ChessGrade is designed for desktop or laptop use. The chessboard requires click precision that makes the experience on small screens less comfortable.