Chess openings
What each opening is trying to do, which variations matter, and the plans that follow - then play the lines out yourself on a free analysis board.
Sicilian Defense
The most analysed answer to 1.e4, and the most popular one at master level. Black declines a symmetrical fight and plays for a win from move one.
French Defense
A solid, strategically rich answer to 1.e4 built around one pawn break: ...c5 against White's centre.
Caro-Kann Defense
The solid answer to 1.e4 that keeps the light-squared bishop free - the French Defense without the bad bishop.
Ruy Lopez
The oldest and deepest of the open games. Nearly every world champion has played the Spanish with both colours.
Italian Game
The classical way to open a chess game: develop, aim at f7, castle. The best first opening for most players.
Queen's Gambit
The most respected way to open with 1.d4, and the opening that gives its name to everything from the Slav to the Semi-Slav.
Slav Defense
The Queen's Gambit Declined without the bad bishop - and one of the soundest defences in chess.
King's Indian Defense
Give White the centre, then blow it up. The most uncompromising way to meet 1.d4.
Nimzo-Indian Defense
The most respected defence to 1.d4 - Black pins the knight, fights for e4, and hands White doubled pawns to argue about for forty moves.
English Opening
A flank opening that fights for d5 from the side - and transposes into half the openings in chess.
London System
One setup against almost everything. The most popular opening at club level - and the most complained about.
Scandinavian Defense
Challenge the centre on move one. Low theory, clear plans, and a structure you get every single game.
How to choose an opening
Pick by the kind of position you want to play, not by what scores best in a database. A player who enjoys slow manoeuvring will get more out of the Caro-Kann or the Queen's Gambit than out of a Sicilian Najdorf, however well the Najdorf performs for people who study it.
Then learn one opening properly rather than five badly. Understanding the plans in a single system beats twelve moves of memorised theory in six systems, because the memorisation runs out the moment your opponent deviates - and below master level, they always deviate.
The fastest way to learn an opening is to play it, lose with it, and analyse why. Import your games, find the move where the position turned, and go back to the guide with a specific question rather than reading it cover to cover.
Study an opening on the board
Every guide here gives you the move order and the ideas. The analysis board gives you the rest: play the moves out, and the opening explorer shows how often each continuation is played from that exact position and how it scores - filtered to the rating range you actually play in, not to grandmaster games.
When a move surprises you, let Stockfish show the refutation. That is usually the moment the opening starts to make sense.
Frequently asked questions
What is the best chess opening for beginners?
For White, the Italian Game - every move follows a principle you can state out loud. For Black, 1...e5 against 1.e4 and the Queen's Gambit Declined against 1.d4. All three teach open-game principles with very little memorisation.
How many openings should I learn?
One as White, and one against each of 1.e4 and 1.d4 as Black. Three systems is enough to cover almost every game you will play, and learning them deeply beats sampling a dozen.
How much opening theory do I need?
Below about 1800, very little. Knowing the first six to eight moves and the plan that follows is enough; games at that level are decided by tactics and middlegame mistakes, not by opening preparation.