Master Chess Openings

Learn chess openings effectively with spaced repetition

Add openings to your collection, set difficulty levels, and track your progress with our convenient and intuitive interface.

Features

Powerful tools for chess opening mastery

Debutus uses modern learning science and spaced repetition to make mastering chess openings effective and convenient.

Spaced Repetition

Optimize your learning with the scientifically proven FSRS algorithm for long-term retention

Custom Openings

Add your favorite openings to practice and build your personal repertoire

Progress Tracking

Basic daily statistics: track how many lines you reviewed each day

Sync with Lichess and Chess.com

Find your games where studied theory appeared and analyze their application

Practice Mode

Train move sequences after initial learning for better retention

Computer Analysis

Analyze your played games with Stockfish to find mistakes and improve your play

How It Works

Start mastering openings in 3 simple steps

1

Add Openings

Browse and add unstudied openings to your personal collection

2

Set Difficulty

Choose difficulty levels for each opening based on your expertise

3

Practice & Track

Practice regularly and watch your mastery grow on the dashboard

Join Our Community

Stay updated with news and updates on our social networks

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We share useful chess tips, update announcements, and answer your questions

AI Game Analysis

Load a game from Lichess or Chess.com β€” Stockfish finds the mistakes, and an AI coach explains everything

Every move classified β€” from "brilliant" to "blunder", like leading chess services do
Coach-style comments: tactics, strategy, plans, and how each flaw played out in your game
Opening ideas and master-game statistics β€” understand what the theory meant
Evaluation graph with color-coded moves β€” see exactly where the game turned
Comments in Russian or English β€” your choice

One AI analysis per day is free in the app. The Debutus Pro subscription unlocks unlimited analysis.

Pricing

Choose the plan that's right for you

Free

Free

Perfect for trying out Debutus

  • Up to 5 openings
  • Basic spaced repetition
  • Progress tracking
  • Mobile app access
Get Started

Pro

399β‚½/month

For serious chess players

  • Unlimited openings
  • Advanced FSRS algorithm
  • Sync with Lichess and Chess.com
  • Priority support
  • Ad-free experience
Subscribe

Pro Β· Year

3 990β‚½/year

Two months free compared to the monthly plan

  • Unlimited openings
  • Advanced FSRS algorithm
  • Sync with Lichess and Chess.com
  • Priority support
  • Ad-free experience
Subscribe

The subscription renews automatically until you cancel it. Cancel anytime β€” in your account on the website or in the app settings.

Download Debutus

Available on iOS and Android

Get Debutus on your preferred platform and start improving your chess openings today.

Google Play

Available on Google Play

App Store

Available on App Store

Debutus - Chess Opening Trainer