411 REFERENCE · Wikibooks
Chess Opening Theory/1. e4/1...e5/2. Nf3/2...Nc6/3. Bb5/3...a6/4. Ba4/4...Nf6/5. O-O/5...b5
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Ruy Lopez
6. Bb3 is necessary to save the bishop.
Theory table
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O b5
6
7
Arkhangelsk Variation
Bb3Bb7
d3Be7
=
References
Ruy Lopez