NOW IN OPEN BETA - V 0.1

Stop forgetting your opening prep.

Build your repertoire, organize every variation, quiz the lines that matter, and see where your prep is still thin.

Free to start. Upgrade later when you need bigger limits.
Start Free ->
Line depthQuiz folderStockfish ready
Groups & foldersMove commentsQuiz modeStockfishAnalytics
The problem

Most opening prep dies in scattered notes.

ChessLair keeps your moves, comments, quizzes, and depth signals in one place before your repertoire turns into noise.

Features

Everything for opening prep you can actually recall

Save lines fast

Capture moves right after a game, lesson, or study session.

01

Organize groups and folders

Keep openings readable with groups, folders, and focused variation limits.

02

Add comments move by move

Write the reason behind each move so future-you knows what the line was for.

03

Quiz the exact prep you built

Drill by opening, group, folder, or variation instead of hoping passive review sticks.

04

Analyze with Stockfish

Check positions while building lines and play through engine suggestions when needed.

05

Track repertoire depth

See your strongest openings, weakest side, and recently updated prep at a glance.

06
Product preview

See the shape of your repertoire.

Quick signals for what is built, what is thin, and what changed last.

Repertoire dashboardToday
Openings8
Groups24
Folders15
Variations92
Color split8 openings
WhiteBlack
Line depthTop 3
  1. Sicilian Najdorf92%
  2. Vienna Game68%
  3. Caro-Kann41%
Recent updatesLast 3
  1. Vienna Game
  2. Caro-Kann
  3. Sicilian Najdorf
Workflow

From idea to muscle memory.

01

Create an opening

Start with the line you just studied before it disappears into another notes app.

Step 01
1. e4King's pawn
1... c5Sicilian
02

Build groups and folders

Keep related ideas together so you can review one branch without reopening the whole repertoire.

Step 02
Folder: Vienna Best Line
Main Line
Black overprotects
03

Drill the lines

Quiz one folder, one group, or the whole opening before game-day prep gets rushed.

Step 03
Position 12 / 303 mistakes
Find the next move.
04

Review analytics

See which openings have depth, which color is underbuilt, and what needs attention next.

Step 04
Line depth
Top 3 openings
Benefits

Built for prep you can use when it matters.

Before game day

Remember lines under pressure

Quiz the prep before it becomes a surprise over the board. Passive notes do not warn you when recall is gone.

01
Depth signal

Know what is underbuilt

Stop guessing which opening needs work. The dashboard shows thin lines before they cost you games.

02
Smaller loops

Keep prep reviewable

Focused groups, folders, and limits keep your repertoire useful instead of turning into a pile of maybes.

03
Pricing

Start free. Upgrade for bigger limits.

StarterFree
  • Starter opening limits
  • Groups, folders, and variations
  • Quiz and playthrough modes
  • Move comments and Stockfish
Start Free ->
PaidBigger limits
  • 10x openings
  • 10x folders
  • 10x variations
  • More benefits coming soon
Pay now

Your prep only matters
if you can recall it.

Start building the repertoire you can review, quiz, and measure before the next important game.

Start Free ->
ChessLair - Build, quiz, and remember your chess openings. | Product Hunt