𧊠Tactical Puzzle Trainer
Solve curated tactical challenges with instant feedback, reset options, and GM Hikaru explanations!
Smothered Mate Classic
White to move and deliver an unstoppable back-rank checkmate.
Tap "Coach Hint" when you need tactical guidance.
đ Game Review & Real-Time Evaluation Graph
Comprehensive move-by-move evaluation graph, move classification counts, and accuracy report.
Advantage Progression Line Graph
Centipawn Evaluation per MoveOpening Book Explorer & Lichess Masters Database
Explore deep Grandmaster opening lines with interactive board, real Lichess Masters statistics, and Coach Naomi strategic breakdown!
Sicilian Defense: Najdorf Variation
The sharpest and most deeply analyzed opening in chess history.
Popular GM Candidate Moves (Lichess Master DB): 2,100,000+ Games
Deep Dive â Decision Tree Analysis
Replay positions, evaluate Stockfish candidate branches, and preview 10-ply continuation lines.
Choose Position Snapshot
Use the Scrubber above or the Game History tab to select any key turn in your game.
Select Candidate Branch
Review the Stockfish candidate list below. Click any alternative move to test it.
Simulate Predicted Sequences
Scrub through the 10-ply timeline on the right board to visually watch how variations unfold.