Ivan wrote:

Why do people say that the Bayonet attack (early b4) is so strong
against King's Indian Defense:

1. d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 0-0 6.Be2 e5 7.0-0 Nc6 8.d5
Ne7 9.b4

White is just attacking on the queenside and all he is getting is
material. But Black is counterattacking on the kingside and aiming at
the white's king's throat!!!

So why is it so hard for black to play against this line?



Black is going over c5 and d6. If Black fail to get into White's castle,
he will have problems

And black has to make some arrangements in his pieces in order to... and
that consume time... which White usually use in going over c5, d6 and
even c7

after center closing, that is one of the most fighting variation in
chess openings

best regards
Luis