Famous Openings Explained by Ideas
The biggest mistake in opening study is memorising moves without understanding them. When your opponent deviates from your memorised line, and they always will, you're lost. But if you understand the idea behind each opening, you can find good moves even in unfamiliar positions. Here are twelve of the most important openings, explained by their strategic logic.
1.e4 openings
- Italian Game (3.Bc4): The idea: aim at f7, develop rapidly, control the centre with d4. See Italian vs. Ruy Lopez and its opening page.
- Ruy Lopez (3.Bb5): Pressure the e5 defender (Nc6), build long-term structural advantage. The deepest and most strategic 1.e4 e5 opening. See its opening page.
- Sicilian Defence (1...c5): Create asymmetry, fight for counterplay from move one. See Sicilian Defence Guide and its opening page.
- French Defence (1...e6): Build a solid pawn chain (d5-e6), counterattack the base with ...c5. Accept a slightly cramped position for structural soundness. See its opening page.
- Caro-Kann (1...c6): Play ...d5 with pawn support, reach a solid position with no weaknesses. The "safe" defence to 1.e4. See its opening page.
1.d4 openings
- Queen's Gambit (2.c4): Challenge Black's centre immediately. If Black accepts (2...dxc4), White gets a dominant centre; if Black declines, White maintains pressure. See its opening page.
- London System (2.Bf4): A setup system: same plan against everything. Solid, low-theory, practical. See London System Guide and its opening page.
- King's Indian (1...Nf6 2...g6): Let White build a centre, then attack it with ...e5 or ...c5. Dynamic, aggressive, sharp. See its opening page.
- Nimzo-Indian (3...Bb4): Pin the knight on c3, fight for control of e4. The most respected defence to 1.d4. See its opening page.
Universal openings
- English (1.c4): Control d5 without committing to d4. Flexible, transpositional, favours positional play. See its opening page.
- Réti (1.Nf3): Delay central commitments, develop flexibly, choose a structure later. The ultimate positional opening. See its opening page.
- Catalan (1.d4 Nf6 2.c4 e6 3.g3): Fianchetto the bishop on g2, control the long diagonal, build quiet positional pressure. Carlsen's favourite weapon. See its opening page.
How to use this
Pick one opening from each group that matches your style. Read the idea summary. Then explore the main lines in our opening explorer, knowing the idea, you'll understand why each move is played, not just what it is. That understanding is permanent; memorisation is fragile.