411 REFERENCE · Wikibooks
Chess Opening Theory/1. e4/1...Nf6/2. e5/2...Nd5/3. d4/3...d6/4. c4/4...Nb6/5. f4
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Alekhine's Defence rd nd bd qd kd bd rd pd pd pd pd pd pd pd nd pd pl pl pl pl pl pl pl pl rl nl bl ql kl bl nl rl
Alekhine's Defence - Four Pawns Attack
White has built a huge pawn center. Black will try to destroy it from a distance. It would be a good idea to exchange the d pawn so as to weaken the king side : /5...dxe5/.
A more quiet line is : /5...Bf5/, developing the bishop. /5...g6/ is also a line which has been played by Magnus Carlsen - on g7 the bishop will exert pressure along the long diagonal, and helps to the attack against d4 and e5. It also gives White other attacking plans, such as h4-h5. 5...g5!? is an objectively unsound but creative idea, since 6.fxg5? dxe5 7.dxe5 Qxd1+ 8.Kxd1 Bg7 followed by ...Nc6 and ...Nd7 will win back the pawn with a much stronger structure & development, but declining it often allows White an advantage.
Theory table
1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.c4 Nb6 5.f4
5
...
dxe5
=
...
Bf5
=
...
g6
=
...
g5
=
References
Alekhine's Defence