Play directly on the board. Moves and positions save automatically.
2
Name & Comments
Label your opening and defense branches and add personal notes.
3
Add more moves
Explore branching variations and counter-attacks naturally.
4
Learn
Revisit positions anytime and drill lines to build muscle memory.
THE HUMAN APPROACH
Designed for how chess players actually learn.
Opening study shouldn't feel like deciphering an engine log. Combine the tactile intimacy of a grandmaster's personal notebook with modern tree visualization.
01Record what you actually play.
The Living Notebook
Forget encyclopedias with 40-move engine lines you will never encounter. Capture the lines you face in real club games, name your favorite defenses, and grow your understanding move by move.
Zero manual save buttons
Automatic transposition sharing
Free hierarchy that mirrors human thought
02Attach the "why" to every square.
Strategy Over Raw Notation
Moves without ideas vanish under clock pressure. Document key pawn levers, central break timing, and piece maneuvers separately for White and Black players.
Dual White & Black strategic notes
Identifies thematic pawn breaks
Distinguish opening traps from defenses
03Turn opening anxiety into mastery.
Tournament Confidence
When your opponent deviates on move 4, you won't panic. Because you studied the strategic ideas behind the structure, you know exactly how to adapt and seize the initiative.
Spaced repetition memory training
Instant PGN & Lichess export
100% private to your account
INTERACTIVE BRANCH TREE
Visualizing the river of moves.
One opening move leads to dozens of distinct pawn battles. Instead of hunting through endless nested folders, view candidate branches side by side and compare key plans in one place.
BUILT FOR TOURNAMENT COMPETITORS & CLUB PLAYERS
Every tool you need to turn opening chaos into muscle memory.
Forget messy spreadsheets and disjointed video timestamps. Our architecture treats your repertoire as a living, interconnected knowledge base.
⇄Transposition Engine
Automatic Transposition Deduplication
Different move orders frequently converge to the exact same pawn structure. Our graph engine instantly recognizes matching FENs across your repertoire—so notes you write in the Queen's Gambit are automatically linked when reached via the Catalan or English.
● Active Study Line
1. e4 e5 2. Nf3 Nc6 3. Bb5
01Record what you actually play.
02Attach the "why" to every square.
03Turn opening anxiety into mastery.
