411 REFERENCE · Wikibooks
Chess Opening Theory/1. e4/1...a6/2. d4/2...b5/3. Nf3/3...Bb7/4. Bd3
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St. George Defence rd nd qd kd bd nd rd bd pd pd pd pd pd pd pd pd pl pl bl nl pl pl pl pl pl pl rl nl bl ql kl rl
St. George Defence
At that point, Black will usually play e6 and Nf6 in any order.
/4...Nf6/ adds up pressure and forces 5. Qe2 (5. e5 would free the bishop line of fire).
/4...e6/ builds Black pawn center and takes control of key squares.
Theory table
.
'1.e4 a6 2.d4 b5 3.Nf3 Bb7 4.Bd3'
4
...e6
=
...Nf6
=
References
St. George Defence