411 REFERENCE · Wikibooks
Chess Opening Theory/1. e4/1...Nf6/2. e5/2...Nd5/3. d4/3...b5/4. Bxb5
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O'Sullivan Gambit rd nd bd qd kd bd rd pd pd pd pd pd pd pd bl nd pl pl pl pl pl pl pl pl rl nl bl ql kl nl rl
Alekhine Defense: O'Sullivan Gambit
Black will continue with 4...c5!
Theory table
.
'1.e4 Nf6 2.e5 Nd5 3.d4 b5 4.Bxb5'
3
...
d6
=
'1.e4 Nf6 2.e5 Nd5 3.d4'
3
...
e6
=
References
Alekhine's Defence