Repertoire

The Repertoire feature helps you build a personal opening playbook and drill it until the moves become second nature. It combines a structured editor for constructing opening lines with a spaced repetition trainer that focuses your practice on the moves you find hardest to remember.

What Is a Repertoire?

A repertoire is a collection of chess variations organized by opening — your prepared responses to whatever your opponent might play. En Parlant~ stores repertoires as standard PGN files, but adds specialized Build and Train modes on top for constructing and memorizing your lines.

Creating a Repertoire

There are two ways to start:

From the home screen, click Create Repertoire
From the Files page, select Create, then choose Repertoire

Once created, you can begin adding variations immediately.

Build Mode

Open Build mode by clicking the Build button in the side panel. This is where you construct your repertoire line by line.

Setting a Starting Position

Most repertoires focus on a specific opening complex. To set your starting point:

Make the relevant opening moves on the board (e.g., the moves of the Ruy Lopez or the Sicilian)
Click Set as Start to establish the repertoire root

Everything you build branches out from this starting position.

Reference Data

Build mode displays commonly played moves from each position using your reference database. For each candidate move, you’ll see:

Frequency — How often the move appears in master games
Win rates — Results breakdown (win/draw/loss)
Coverage — Whether your repertoire already addresses this move

This data helps you decide which opponent responses to prepare for and which to skip.

Two shortcuts keep you moving efficiently:

Go to your next gap — Jumps to the nearest position where your repertoire has no response prepared
Go to your biggest gap — Jumps to the position with the most uncovered opponent moves, so you can prioritize the most important holes

Coverage

Coverage measures how thoroughly you’ve prepared for opponent responses. A position is considered “completely covered” when it’s been extended to a depth where the reference database shows fewer games than the threshold you’ve set in Settings > Repertoire.

The system automatically handles transpositions — if two different move orders lead to the same position, your preparation counts for both. You won’t accidentally double-prepare the same line.

Train Mode

Once you’ve built some lines, click Train to start drilling them. The trainer shows you a position from your repertoire and asks you to find the correct move.

Spaced Repetition

After each move, rate how difficult it was on a scale of 1 to 4:

1 — Easy, knew it instantly
2 — Correct, but had to think
3 — Struggled, barely got it
4 — Didn’t know it

The system uses these ratings to schedule reviews. Moves you rate as difficult come back sooner and more often. Moves you know well fade into longer intervals. Over time, your practice sessions focus exactly where they’re needed.

Keyboard shortcuts 1-4 let you rate quickly without reaching for the mouse.

Progress Tracking

The progress bar shows your current training session stats:

Session percentage — How far through the current review set you are
Moves practiced — Total moves attempted this session
Correct / Incorrect — How many you got right and wrong
Accuracy — Your overall percentage for the session

Review Indicator

When positions in a repertoire are due for review, a symbol appears next to the filename on the Files page. This makes it easy to spot which repertoires need attention without opening each one.