411 REFERENCE · Wikibooks
Chess Opening Theory/1. c4/1...e6/2. Nf3/2...d5/3. g3/3...Nf6/4. Bg2/4...Be7/5. O-O
Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.
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English Opening
5. O-O
Theory table
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1.c4 e6 2.Nf3 d5 3.g3 Nf6 4.Bg2 Be7 5.O-O
5
6
O-OO-O
b3b6
=
English Opening
References