16 Dec '09 20:26>
After playing an interesting blitz game on the black side of the Giuoco Piano, I decided to do a little (light) analysis.
The game proceeded:
The usual Moller Attack move is 9.d5, which gets all of the analysis in most books. (9.bxc3 is not in my copy of ECO, Beating The Open Games by Marin, or a few other books.)
Already, I was out of book and had a choice. Two ideas came into mind. The first was the natural 9. ... d5. However, I was a little curious about the piece sacrifice 10.Ba3!?.
My second reaction was simply 9. ...0-0. The thing that worried me about it was white simply playing 10.d5 before black gets the chance.
I went with 9. ... 0-0 in the actual game, and luckily my opponent didn't play 10.d5.
9.dxc3 still left an impression on me, and I couldn't wait to get to the bottom of it.
After a little digging, I found a book with a few lines on the book (The Giuoco Piano by Gufeld and Stetsko). Also, with the aid of a computer, I was able to dig a little deeper in the previous analysis.
9.dxc3 0-0 ?! (not book) runs into 10.d5! Na5 11.Bd3
11. ... f5 12.Re1 and 11. ... Nf6 12.Re1 (12.d6!?) both give white a slight advantage.
Therefore, black's correct response to 9.dxc3 is 9. ... d5!.
10.Ba3 is what worried me here. It turns out that this move was played by Steinitz against Lasker in a World Championship!
10. ... dxc4 seems essential, as does 11.Re1.
Here Lasker tried two moves. He first played the real test 11. ... f5. I'll cover that later. Lasker's second attempt, and the one considered best by Gufeld and Stetsko, is 11. ... Be6!?.
12.Rxe4 Qd5! 13.Qe2 0-0-0 14.Ne5 Rhe8 was played. The authors say "Black has achieved a clear advantage."
In fact, this position:
is almost dead equal in spite of the material (according to the engine)!!!
That leaves only one more try for an advantage against 10.Ba3.
10.Ba3 dxc4 11.Re1 f5! (Lasker's first choice and the best move).
Here white must play 12.Nd2.
Black has two tries.
1.) 12. ... Kf7 was Lasker's choice.
The game proceeded 13.Nxe4 fxe4 14.Rxe4 Qf6! 15.Qe2.
This is a very wild position where black oddly only has a slight advantage!
Even Oleg and Stetsko say white has compensation for the material. I was playing around with this position, and there are a lot of ways for black to go wrong.
The computer line that follows is really something too.
15. ... Bf5 16.Qxc4+ Kg6 17.Re3
I know if I were black, I'd feel really uncomfortable with my king on g6.
Black has a slight edge, but the conversion is going to take a lot of work.
Now, here is black's second attempt at the advantage.
2.) 12. ... Be6!
This may be a new move!!!
13.Nxe4 fxe4 14.Rxe4 Qd7 leads to two variations.
2.A.) 15.d5 0-0-0 16.Rxe6 Qxd5 17.Qg4 h5 gives black an edge.
2.B.) 15.Qh5+ !? g6 16.Qg5
Black must find 16. ... Kf7! 17.Rf4+ Kg8
Here the white attack is finally over.
Conclusion 9.bxc3 with the idea of 10.Ba3 is a very wild deviation from the usual 9.d5. It may give the right attacking player a good chance to catch someone unprepared. On the whole, it doesn't appear to be totally sound (despite it's use by Steinitz). The engine's 12. ... Be6 seems to be a really good attempt at refuting the whole variation.
The game proceeded:
The usual Moller Attack move is 9.d5, which gets all of the analysis in most books. (9.bxc3 is not in my copy of ECO, Beating The Open Games by Marin, or a few other books.)
Already, I was out of book and had a choice. Two ideas came into mind. The first was the natural 9. ... d5. However, I was a little curious about the piece sacrifice 10.Ba3!?.
My second reaction was simply 9. ...0-0. The thing that worried me about it was white simply playing 10.d5 before black gets the chance.
I went with 9. ... 0-0 in the actual game, and luckily my opponent didn't play 10.d5.
9.dxc3 still left an impression on me, and I couldn't wait to get to the bottom of it.
After a little digging, I found a book with a few lines on the book (The Giuoco Piano by Gufeld and Stetsko). Also, with the aid of a computer, I was able to dig a little deeper in the previous analysis.
9.dxc3 0-0 ?! (not book) runs into 10.d5! Na5 11.Bd3
11. ... f5 12.Re1 and 11. ... Nf6 12.Re1 (12.d6!?) both give white a slight advantage.
Therefore, black's correct response to 9.dxc3 is 9. ... d5!.
10.Ba3 is what worried me here. It turns out that this move was played by Steinitz against Lasker in a World Championship!
10. ... dxc4 seems essential, as does 11.Re1.
Here Lasker tried two moves. He first played the real test 11. ... f5. I'll cover that later. Lasker's second attempt, and the one considered best by Gufeld and Stetsko, is 11. ... Be6!?.
12.Rxe4 Qd5! 13.Qe2 0-0-0 14.Ne5 Rhe8 was played. The authors say "Black has achieved a clear advantage."
In fact, this position:
is almost dead equal in spite of the material (according to the engine)!!!
That leaves only one more try for an advantage against 10.Ba3.
10.Ba3 dxc4 11.Re1 f5! (Lasker's first choice and the best move).
Here white must play 12.Nd2.
Black has two tries.
1.) 12. ... Kf7 was Lasker's choice.
The game proceeded 13.Nxe4 fxe4 14.Rxe4 Qf6! 15.Qe2.
This is a very wild position where black oddly only has a slight advantage!
Even Oleg and Stetsko say white has compensation for the material. I was playing around with this position, and there are a lot of ways for black to go wrong.
The computer line that follows is really something too.
15. ... Bf5 16.Qxc4+ Kg6 17.Re3
I know if I were black, I'd feel really uncomfortable with my king on g6.
Black has a slight edge, but the conversion is going to take a lot of work.
Now, here is black's second attempt at the advantage.
2.) 12. ... Be6!
This may be a new move!!!
13.Nxe4 fxe4 14.Rxe4 Qd7 leads to two variations.
2.A.) 15.d5 0-0-0 16.Rxe6 Qxd5 17.Qg4 h5 gives black an edge.
2.B.) 15.Qh5+ !? g6 16.Qg5
Black must find 16. ... Kf7! 17.Rf4+ Kg8
Here the white attack is finally over.
Conclusion 9.bxc3 with the idea of 10.Ba3 is a very wild deviation from the usual 9.d5. It may give the right attacking player a good chance to catch someone unprepared. On the whole, it doesn't appear to be totally sound (despite it's use by Steinitz). The engine's 12. ... Be6 seems to be a really good attempt at refuting the whole variation.