Openings

The opening is the first phase of the game, followed by the middlegame and the endgame. It consists of the initial moves of the game that follow established theory. These are a set of pre-established moves. There are many openings, more than 1327 recognized ones, each with its own name. This large number is due to the vast number of possibilities, already by the third move, there are already 8902 possible positions.

Openings are not an only sequence of movement, each one of them has lots of variations and different plays from which to chose. These are called variations or lines, and it makes the firsts moves much more varied and interesting.

The goals of the opening are:

Develop pieces to create plans against the opponent and position them in squares where they can impact the game. The sooner we develop our pieces, the sooner we can attack our opponent and damage their development and structure.

Achieving a good position that will provide an advantage in the future. It is important to get into a position where we feel comfortable and familiar, allowing us to play more confidently.

Controlling the center with our pieces gives us the ability to dictate the game. Since we don’t yet know which side of the board the action will unfold on, it is essential to place our pieces in a way that allows them to move quickly to any part of the board.

Protecting our king early in the game is crucial. This helps us avoid early attacks that could put us at risk. At the start, the king is in the center, where it is most exposed. It is safer on the sides of the board, which is why players usually castle during the opening.

They can be classified into six types:

Open games start with 1. e4 e5 and often lead to positions with many tactical moves and open lines.

Closed games occur after 1. d4 d5. These typically lead to slower positions where players try to gain a long-term advantage.

Semi-open games start with 1. e4, but Black does not respond with e5, instead, they make other moves that lead to openings such as the Sicilian, French, or Scandinavian defenses.

Semi-closed games are similar to semi-open games, but instead of 1. e4, White plays 1. d4, leading to openings like the Dutch Defense.

Indian defenses begin with 1. d4 Nf6. They typically follow the strategy of controlling the center with pieces and attacking the opponent’s advanced pawns. Some examples are the King's Indian Defense and the Nimzo-Indian Defense.

Flank openings start with a pawn move from the c or f file (flank pawns) by White, such as the English Opening and the Bird Opening.

The Ruy López

También se la conoce como apertura española. Las blancas consiguen controlar el centro, desarrollar sus piezas y prepararse para enrocar. A su vez, atacan el centro amenazando capturar el defensor de e5 y llevarse el peón.

1. e4 e5 2. Nf3 Nc6 3. Bb5

The most popular variations are:

The exchange variation
Closed Ruy López
Noah's Ark Trap
1. e4 e5
2. Nf3 Nc6
3. Bb5 a6
4. Bxc6 dxc6
1. e4 e5
2. Nf3 Nc6
3. Bb5 a6
4. Ba4
1. e4 e5
2. Nf3 Nc6
3. Bb5 a6
4. Ba4 d6
5. d4 b5
6. Bb3 Nxd4
7. Nxd4 exd4
8. Qxd4 c5
9. Qd5 Be6
10. Qc6+ Bd7
11. Qd5 c4
Queen's Gambit

One of the most popular openings, White sacrifices the c4 pawn to gain a strong development advantage.

1. d4 d5 2. c4

The most popular variations are:

Queen's Gambit accepted
Queen's Gambit declined
Trap
1. d4 d5
2. c4 dxc4
3. e4 e5
1. d4 d5
2. c4 e6
3. Nc3 Nf6
4. Bg5 Be7
5. Nf3 h6
6. Bxf6 Bxf6
7. e3
1. d4 d5
2. c4 e6
3. Nc3 Nf6
4. Bg5 Nbd7
5. cxd5 exd5
6. Nxd5 Nxd5
7. Bxd8 Bb4+
8. Qd2 Kxd8

If not accepted, the Queen's Gambit declined is played.

If accepted, the Queen's Gambit accepted is played.

There's also a trap in this gambit after defending the knight with the other knight instead of the bishop.

London System

It is very solid opening where White quickly develops the dark-squared bishop to f4.

1. d4 d5 2. Nf3 Nf6 3. Bf4

There are three main variations:

Main Line
Jobava London
Indian Setup
1. d4 d5
2. Bf4 Nf6
3. e3 c5
4. c3 Nc6
5. Nd2 e6
6. Ngf3 Bd6
7. Bg3 O-O
8. Bd3 b6
9. Qe2 Bb7.
1.d4 Nf6 2.Nc3 d5 3.Bf4
1. d4 Nf6
2. Bf4 g6
3. Nf3 Bg7
4. e3 d6
Italian Game

It quickly develops pieces while putting pressure on Black’s king.

1. e4 e5 2. Nf3 Nc6 3. Bc4

There are two main variations:

Giuoco Piano
Two Knights Defense
1. e4 e5
2. Nf3 Nc6
3. Bc4 Bc5
1. e4 e5
2. Nf3 Nc6
3. Bc4 Nf6
Caro-Kann Defense

A very solid opening where Black plays for central control. The goal is to form a strong pawn chain and attack White’s kingside.

1. e4 c6 2. d4 d5

The most popular variations are:

Main Line
Exchange Variation
Traps
1. e4 c6
2. d4 d5
3. Nc3
1. e4 c6
2. d4 d5
3. exd5 cxd5
4. Bd3
1. e4 c6
2. d4 d5
3. f3 dxe4
4. fxe4 e5
5. Nf3 Bg4
6. Bc4 Ne7
7. Bxf7+ Kxf7
8. Ne5+ Ke8
9. Qxg4
1. e4 c6
2. d4 d5
3. f3 e6
Fantasy Variation
1. e4 c6
2. Nc3 d5
3. Nf3 dxe4
4. Nxe4 Nf6
5. Qe2 Nbd7
6. Nd6#
The Pieces
Notation
Stages of the Game
Attacks
Rules
Mating Patterns