White repertoire
No white repertoire positions yet.
Import
Import your games, find repeated best-move misses, and start training.
Time controls
Import scope
Startup
Import saved PGN instead
Paste one or more PGNs to find repeated best-move misses locally, without fetching from Chess.com.
Uses local browser Stockfish and stores analyzed positions offline.
Import NewChessnut OTB games
Pull over-the-board PGNs from the local NewChessnut database and build them into the same Bookup repertoire.
Export PGN from NewChessnut, then select it here. The browser never uploads the file.
Summary
No repertoire loaded yet
Run an import to build exact-position lessons from repeated moves in the games you actually play.
Games
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Known
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Win rate
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Run an import to see local Stockfish progress and the exact positions Bookup is analyzing.
Today’s Queue
Train the next position, then browse
Import games or save a repertoire move to build your training queue.
Health Dashboard
What needs attention right now
Build your repertoire to see coverage, confidence, and today’s study load.
Repertoire Map
Positions and branches you actually reach
Your replies as Black
Grouped by the first move your opponent played.
No black repertoire positions yet.
Line Launch
Open an exact branch in the trainer
Use Work on line on any repertoire card to open that exact branch in the Trainer.
Browse full repertoire libraryStarting moves, known lines, transpositions, and the deep tree
First Moves
How your repertoire starts
When You Play White
Your first move.
No white first-move data yet.
When You Play Black
What your opponent opens with.
No black first-move data yet.
Known Line Archive
Lines you already know well enough to keep out of the urgent queue
Complete clean reps to build the known-lines archive.
Transpositions
Different paths into the same position
Import games to detect shared positions and transpositions.
Repertoire Tree
Navigate the lines from your imported games
This exact-position tree separates games where you played White from games where you played Black. Select any branch to open it on the training board.
Import games to build your move tree.
Progress you can turn into training
Live results, locally measured move accuracy, and the exact phase that deserves your next review.
Progress tracker will load with your saved Chess.com username.
Next Study Action
Turn this progress into one clean repetition
Your next exact-position review will appear here.
Open charts and full progress toolsRatings, accuracy, goals, projections, and saved sessions
Rating trajectory
Recent games, with dates and rating range.
Rating change
Daily snapshots when available, otherwise each imported game.
Move accuracy lab
Bookup compares each analyzed move with Stockfish. Book and engine-best moves score 100%.
Scoring method
Chess.com’s CAPS2 formula and phase boundaries are not public. Bookup uses Stockfish expected-points loss: Book and engine-best moves are 100%, then each remaining move is scored by how much winning expectation it gives away. Opening, middlegame, and endgame are separated with transparent move-count and material rules.
Accuracy by phase
Move feedback
Weakness and next action
Analyze games to measure phase accuracy.
Recently analyzed games
Overall and phase accuracy from your own moves.
Import games to analyze recent play.
Games played
Career win rate
Accuracy by game
Goal Progress
Projection
Refresh progress to calculate rating projections.
Time Calculator
Refresh progress to estimate real playing time.
Training Recommendations
Refresh progress to build today’s training focus.
Recent Sessions
No local progress sessions yet.
Analysis Board
No lesson loaded
Import games, then train the next exact decision position from your queue.
Bookup will ask for Stockfish's best move in the exact position where your repeated move went wrong.
No decision point loaded yet.
The board stays on the exact decision position after a wrong move so you can correct it immediately.
No position loaded yet.
Choose a due position from the queue or launch one from a needs-work card.
Smart Theory
Build theory from the position you chose
Your selected line stays in control until Stockfish finds a real reason to correct it.
Current nodeIdle
Evaluation0.00
Board loading.
Select or generate a node to inspect its move path.
No node selected.
The recommended move will appear here.
Opening and exact FEN appear here.
Export settings
No export in this session.
Preview the nested tree before export.