Chess Opening Theory/1. e4/1...e5/2. Nf3/2...Nf6/3. Nc3/3...Bb4/4. Bc4

Three Knights Game
	a b c d e f g h 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 a b c d e f g h
	Position in Forsyth-Edwards Notation (FEN) rnbqk2r/pppp1ppp/5n2/4p3/1bB1P3/2N2N2/PPPP1PPP/R1BQK2R
	Moves: 1. e4 e5 2. Nf3 Nf6 3. Nc3 Bb4 4. Bc4

4. Bc4

Black has a few options here:

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Chess openings quick reference

1. e4

2. Nf3

With 2...Nc6:

With other 2nd moves:

2. Other

With 2...Nc6:

With 2...d6:

With 2...e6:

With other 2nd moves:

Anti-Sicilians

1... other

Other

1. d4

2. other

2. c4

With 2...e6:

With 2...g6:

With other 2nd moves for Black:

2. Nf3

2. other

1... other

Flank

Unorthodox

Three Knights Game
a b c d e f g h 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 a b c d e f g h
Position in Forsyth-Edwards Notation (FEN) rnbqk2r/pppp1ppp/5n2/4p3/1bB1P3/2N2N2/PPPP1PPP/R1BQK2R
Moves: 1. e4 e5 2. Nf3 Nf6 3. Nc3 Bb4 4. Bc4