Berlin Defence

Berlin Defence
7	7
6	6
5	5
4	4
3	3
2	2
1	1
Moves	1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6
ECO	C65–C67
Parent	Ruy Lopez

The Berlin Defence is a chess opening that begins with the moves:

1. e4 e5

2. Nf3 Nc6

3. Bb5 Nf6

The opening is a variation of the Ruy Lopez and is assigned codes C65–C67 in the Encyclopaedia of Chess Openings.^[1] The code C65 covers White moves other than 4.0-0, such as 4.d3 (4.Nc3 is considered a variation of the Four Knights Game). The code C66 covers the variation 4.0-0 d6, and the code C67 covers the variation 4.0-0 Nxe4 (usually regarded as the main line of the Berlin Defence).^[2]

This article uses algebraic notation to describe chess moves.

^ Enciklopedija šahovskih otvaranja = Ent︠s︡iklopedii︠a︡ shakhmatnykh debi︠u︡tov = Encyclopedia of chess openings. Matanović, Aleksandar, 1930–, Rabar, Braslav. (2nd ed.). Beograd: Šahovski informator. 1981–1996. ISBN 0713437162. OCLC 12935304.{{cite book}}: CS1 maint: others (link)
^ Cite error: The named reference :1 was invoked but never defined (see the help page).

[1] Enciklopedija šahovskih otvaranja = Ent︠s︡iklopedii︠a︡ shakhmatnykh debi︠u︡tov = Encyclopedia of chess openings. Matanović, Aleksandar, 1930–, Rabar, Braslav. (2nd ed.). Beograd: Šahovski informator. 1981–1996. ISBN 0713437162. OCLC 12935304.{{cite book}}: CS1 maint: others (link)

[:1-2] Cite error: The named reference :1 was invoked but never defined (see the help page).

[1]

[2]