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85 openings · 1,812 lines

Explore our chess opening database

Train 1,812 lines across 85 classical and modern opening families, based on open databases such as the Lichess opening explorer. Search the complete catalog below, learn the key ideas, and jump straight into training.

  • 85 opening families for White and Black
  • 1,812 playable training lines and variations
  • A searchable catalog backed by the same data as the Trainer
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  • Choose an opening family below
  • Open its dedicated page
  • Click “Train this opening” to launch the Trainer

Browse all 85 families below—not just the featured examples.

Featured opening families

These are a few popular starting points from 85 supported opening families. Each guide explains key ideas and links directly to the Trainer; the complete searchable catalog appears further down this page.

Train chess openings by side and system

Browse the openings we currently support and jump straight into training lines with Free Chess Trainer.

White openings

Italian Game

Classical 1.e4 e5 opening with quick development and pressure on f7.

Italian Gambit

A sharp Italian branch where White opens the center immediately with 4.d4 and plays for rapid development.

Ruy Lopez

Strategic 1.e4 e5 opening where White builds long-term pressure on the queenside.

Scotch Game

A direct 1.e4 e5 system where White opens the center quickly with d4.

Queen's Gambit

The most famous 1.d4 opening, sacrificing a flank pawn for central control.

Catalan Opening

Combines Queen's Gambit structures with a kingside fianchetto for long-term pressure.

London System

A solid and easy-to-learn 1.d4 system with a strong dark-squared setup.

Black against 1.e4

Sicilian Defense

Sharp counterattack against 1.e4, leading to rich, tactical middlegames.

French Defense

Solid 1.e4 reply with a strong pawn chain after ...e6 and ...d5.

Caro Kann Defense

Reliable alternative to the Sicilian with fewer structural weaknesses.

Pirc Defense

Hypermodern setup where Black allows a big center and later strikes back.

Stafford Gambit

A daring Petrov Defense pawn sacrifice with rapid development and kingside attacking chances.

Black against 1.d4

Slav Defense

Rock-solid answer to the Queen's Gambit with a flexible light-squared bishop.

Nimzo-Indian Defense

Flexible defense with Bb4, trading bishop pair for structural targets when it suits Black.

Benko Gambit

Queenside pawn sacrifice that gives Black long-term pressure on the a- and b-files.

All supported openings

We support a large collection of openings and lines. Use the search box to filter by name or ECO code. Click on any opening family to jump straight into training with that opening.

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