Opening name: Open Game
Opening line: 1. e4 e5
Lichess Board
Wikibooks Page
Winning percentages
White: 78492 (30.31%)
Black: 53926 (20.83%)
Draws: 126510 (48.86%)
Open Game
1...e5
1...e5 is Black's classical response to 1.e4. By mirroring White's move, Black grabs an equal share of the centre and scope to develop some pieces. 1...e5 is one of the few moves that directly interferes with White's plan of playing d4.
But the move's merit is also a drawback; the longer the position remains symmetrical, the longer White will have an advantage by moving first. Also, the pawn on e5 is undefended and it is easy for White to develop in a way that restricts Black's possible responses, by simply threatening to capture it.
Though the move is still common at every level, it saw a modest decline in popularity during the 20th century.
White's responses
The overwhelmingly popular move here, about 10 times more common than everything else combined, is 2.Nf3.
This threatens Black's undefended pawn while developing a piece in preparation for castling.
Another plan is to try and lever open the f-file for an attack on Black's weak f7 point with 2.f4, the King's Gambit.
This was popular in Victorian times and earlier, but Black has now found a few reliable ways of grabbing the proffered pawn and keeping it.
2.Nc3, the Vienna Game, and 2.Bc4, the Bishop's Opening, are simple alternative ways of developing a piece.
They don't give Black a particular problem to deal with, but they aren't bad moves either, and they keep open the option of either d4 or f4.
Or, White can smash the centre open with 2.d4 in order to develop pieces with great speed, sacrificing a pawn or two if necessary.
Other less common moves:
Most popular responses
2. Nf3 (Open Game) Black's valuable center pawn is threatened with capture, but White's pawn remains safe. The question for Black at this point is whether to challenge the White pawn on e4 or support the Black one on e5. Lichess Analysis - Wikibooks (833039080 games)
2. Bc4 (Bishop's Opening) This opening is seldom seen in modern play, although White targets the weak f7 pawn and keeps the possibility of playing a deadly f2-f4. Unlike in 2. Nf3, Black's e5 pawn is not under attack, giving him a wider range of choice. Lichess Analysis - Wikibooks (141601540 games)
2. Nc3 (Vienna Game) White's wish is to advance the f-pawn two squares to remove Black's powerful e5 pawn and strike at the heart of his position. Now it is possible to play f4 on the second move, for the King's Gambit, but when no Black piece has yet declared its intentions is there not a degree of hit-and-hope about such a move? If you have the patience to let Black build his bridge before you blow it up: welcome to the Vienna Game, a poison-tipped opening from the nineteenth century. Lichess Analysis - Wikibooks (92037398 games)
2. d4 (Center Game) This move by White smashes open the center and allows White to develop his pieces with very great speed. Instead of the normal 2...exd4, a countergambit can be tried with 2...f5?!, but this is quite a dubious move and is only reserved for unprepared players. Lichess Analysis - Wikibooks (90107683 games)
2. f4 (Unnamed) White's pawn on f4 is attacked, which is the whole point of the King's Gambit. A gambit - which is not the same thing as an opening - involves a sacrifice of material (chess pieces, usually pawns) for positional gain. Lichess Analysis - Wikibooks (82487739 games)
2. d3 (Leonardis Variation) Lichess Analysis - Wikibooks (43088766 games)
Engine Evaluation
Depth: 61
Score: +0.21
Best Move: Nf3
PV Line: 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. Re1 Nd6 6. Nxe5 Be7
Historical games for Open Game
Game | Result | Year |
Carlsen, M. (2882) vs Caruana, F. (2818) | 1/2-1/2 | 2019 |
Caruana, F. (2818) vs Carlsen, M. (2882) | 1-0 | 2019 |
Caruana, Fabiano (2835) vs Carlsen, Magnus (2863) | 0-1 | 2020 |
Carlsen, Magnus (2863) vs Caruana, Fabiano (2835) | 1-0 | 2020 |
Carlsen, Magnus (2863) vs Caruana, Fabiano (2835) | 1-0 | 2020 |
Caruana, Fabiano (2835) vs Carlsen, Magnus (2863) | 1/2-1/2 | 2020 |
Caruana, Fabiano (2835) vs Carlsen, Magnus (2863) | 1/2-1/2 | 2020 |
Carlsen, Magnus (2863) vs Caruana, Fabiano (2835) | 1/2-1/2 | 2020 |
Caruana, F. (2819) vs Carlsen, M. (2875) | 1/2-1/2 | 2019 |
Carlsen, M. (2882) vs Ding Liren (2805) | 0-1 | 2019 |