Features | Masterboard

Game Library & Import

Every game you have ever played, in one searchable database.

Import from chess.com and Lichess by username, with date-range and time-control filters
Automatic background sync — new online games import on their own, filed where you want them
Import PGN files or whole folders, and record over-the-board games directly
Duplicate detection on every import — the same game is never stored twice
Organise with folders and cross-cutting collections; filter by player, result, ECO, or source

A full variation tree and PGN-native annotation — no proprietary lock-in.

One-click setup, live multi-PV, and automatic move classification on every game.

Build White and Black repertoires as visual trees, cross-referenced against real games.

Separate repertoires for White and Black, built as a visual variation tree
Import an entire repertoire from PGN — or any public Lichess Study — in one step
Live ECO classification as you step through your lines
Master games and your own history shown beside your preparation
Add new opponent moves directly from the Explorer panel
Deviation panel pinpoints where your real games keep leaving prep, ranked by how often each gap recurs

Millions of master games, downloadable right inside the app.

Download a ready-made master database in-app — no multi-gigabyte PGN wrangling
Choose a slice to fit your disk: Masters (2200+), Elite (2400+), or the Full 10M+ database
In-app delta updates download only what changed, verified end-to-end
Move popularity, W/D/L%, and average Elo at any position
Or index your own PGN collection for personal-game statistics alongside it

Spaced-repetition drills that adapt to how well you know each line.

FSRS spaced repetition — your schedule adapts to how well you know each move
The app plays opponent moves automatically; your responses are scored immediately
Drill your full repertoire, a single colour, or any branch
Review mode walks the whole repertoire regardless of schedule — ideal before a tournament
Coverage heatmap showing recall probability for every move in the tree

Play through any game as one side and test yourself against the engine.

Play through any saved game as one side and try to match the moves
Scored against the engine — the best move earns full marks even when it differs from what was played
An Elo-style rating tracks your guessing strength and improves across sessions
Works on any game in your library: your own games, master games, or study material

See exactly where your results come from — and where they leak.

W/D/L results broken down by colour, time control, and opening
Accuracy trend chart to track improvement over time
Blunder heatmap showing which squares appear most in your mistakes
Luck and opportunism rates: how often opponents gift you wins, and how often you convert
Filter every figure by folder, collection, or date range

Walk into your next game knowing exactly what they play.

Search any opponent from your game library
Results and opening tendencies broken down by colour
Their most frequent and most successful systems, ranked by result
Positions where they have deviated from their own established patterns
Export the full report as PGN, or batch-analyse every game against them in one click

Puzzles built from the exact positions where you went wrong.

Puzzles automatically extracted from your own games — the positions where you blundered
FSRS scheduling: missed positions return sooner, mastered ones are spaced out
Each puzzle links back to its source game, with adjustable strictness for what counts as correct
Sessions run until nothing is due, with an end-of-session solve-rate summary
The puzzle pool grows automatically as you analyse more games

Arrange the board, panels, and theme to match how you work.

Every game you play feeds tomorrow’s preparation.

Import or record any game — OTB, chess.com, Lichess, or PGN
One-click engine analysis flags blunders and inaccuracies automatically
Opening deviation detection shows exactly where you left your prepared repertoire
Add the opponent’s surprise move to your repertoire — it’s due in the next drill session
Tactical mistakes from the game drop into your personal puzzle pool