Originally Posted by Arrogant-One
Hi Dulce,
I think they are actually wrong when they say that bringing the knight to a5 is bad, because in this position it attacks white's bishop which is really quite a nuisance. Generally, while placing a knight on the edge of the board is a mistake, in some instances - this being one of them - it is a good move.
Best Regards,
AO
Na5 is actually a pretty good move in this position, since it forces White's bishop off of the b1-g8 diagonal. 5.Bb5+ keeps the pawn for White, but the bishop will eventually have to retreat.
Retreating the bishop immediately with 5. Be2 gives the pawn back to 5. ...Nxd5, where Black is better.
3. Ng5 is officially called the Fried Liver Attack, but is easily refuted by 3. ...d5, as shown in the video.
4. ...Nd4 fails to account for 5. d6!, giving the pawn back with advantage.
The main line continuation is 4. ...Na5 5. Bb5+ c6 6. dxc6 bxc6 7. Be2 h6 8. Nf3, where Black has sacrificed a pawn for a bad knight on a5 and open lines for the rest of his pieces.
Of course, White could also go into the Four Knights Opening with 4. Nc3.