Opening preparation - Alekhine defense (part 2)
One popular variation that white players like to play against the Alekhine defense is the four pawns attack.
However, there's an interesting gambit style side line for black to play. The so-called Planinc variation (or Cambridge gambit) with g7g5.
I started playing it recently and scored so far : +7 -2 =0 (I'm not so draw-ish, hehe) with black.
White has several options here, but I'll just show one game with white taking on d6 right away.
For further reading :