That old ECO analysis had 10. Bc2 Bg4 11. h3 Bh5 12. Bb3"!" (instead of 12. g4 as played by Fischer, and 50 years later by Caruana) as good for White -- but, aha, it only mentioned 12...Bxf3, not 12...Nxe5.

That was attributed to Korchnoi; I suspect it was from his C83 monograph. Incidentally that last publication, now 28 years old, is still being offered by Chess Informant (for $10).

fjd wrote on 05/31/17 at 23:55:04:


kylemeister wrote on 06/01/17 at 01:14:06:


1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Be7 
Now 10. Bc2!? Bg4! prevents the merger ot two main lines (9.c3 and 9.Nbd2).

I think it can be described as a side-line despite the fact that it has been played in many notable games to include Fischer-Olafsson 1966 and Lagrave - Giri 2019. The line has always received some theoretical attention, to the degree appropriate for a side-line.

GM Mikhalevski (Chess Publishing 2016) significantly improved on Olafsson's play.

In general, the play is typical of the Open Ruy lopez - interesting to crazy. If anyone were to pursue a Black repertoire based on merging lines (9. Nbd2 Nc5 10. c3 Be7 11. Bc2 d4 and 9. c3 Be7 10. Nbd2 Nc5 11. Bc2 d4), they should take a good look at 9.c3 Be7 10Bc2!? Bg4!

fjd wrote on 05/31/17 at 08:12:15:


Are you the co-author of The Complete Open Spanish for Black? It is the first Chessable book that I have purchased. Multiple repertoires are well supported. It's a valuable addition to my Open Ruy library.

One could respond to the subject question with: Is the exchange variation a good way for black to play for a win? My thought is that sometimes one reaches an endgame that contains some imbalance but is about equal. At my level of play, either side can still win.

There are plenty of interesting/exciting lines in the Open Ruy. However, White can try to avoid double-edged play at every turn, while hoping to keep an edge. Does that work for him?

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Nbd2 (other lines are more double-edge) 9...Nc5 10. c3 Be7 11. Bc2 d4 12. cd4 (more of the same from white) Nd4 13. Nd4 Qd4 14. Nf3 Qd1 15. Rd1. Black has some choices.

GM Mikhalevski continues with 15...0-0 in his book. The lines are complicated. He claims equality. I found that engines favor white for some moves, before coming around to equality. 

GM Marin in his more recent E-book also follows 15...0-0. However he provides a second move 15...Rd8.

A possible continuation: 16. Rd8 Kd8 17. Nd4 Bd5 18. Nf5 g6 19. Ne7 Ke7. Here GM Marin comments:

"Once again we have a position with a knight and a bishop against two white bishops. Pawns are equal and the superior mobility of Black's majority maintains equality."

If white plays 20. Be3 black can reply with 20...Ne6 which is thematic in related positions. However Marin's 20...Na4, seems to equalize on the spot.

Marin considers 15...Rd8 to be simple and adequate and 15...0-0 to be more double-edged. Take your pick.

Other openings have issues too. For example Najdorf Sicilian players have to deal with the Moscow (3Bb5ch) variation and the Alapin.

In the same way that you don't always get the Dillworth variation of the Open Ruy, you don't always get your favorite line in the Najdorf. Sometimes one may have to be satisfied with some imbalance in the endgame.

Thanks for the posts. These long lines are indeed double-edged. Thanks for the improvements for Black.

As black, I've played the Sicilian, French, and double-king pawn openings. So my experience and research are a bit scattered!

As black in the Open Ruy Lopez, I keyed in on 9c3 Bc5 a long time ago. So it takes me a while to warm up to lines that transpose to 9c3 Be7 variations.

Players who only play double-king pawn as black would do well to play the Open Ruy IMO. They can still vary their lines. 9c3 Be7 and 9Nbd7 Be7, as suggested is one way to play. 9c3 Bc5 and 9Nbd7 Nc5 is another way.

It's good to know that there is light at the end of the tunnel. I don't want to play a bad line, or one that offers absolutely no prospects. That said, hardly any of my games follow theory, or my preparation, for long. Either one of us does not know theory, or one of us forgets his preparation.

As a practical matter, I find that the Open Ruy Lopez provides chances for both sides in open, often chaotic, even bizzare play. And of course, many games never even get to 5...Nxe4.

For those who prefer more orderly play, there is always 5...Be7. The open variation proves that one need not be drunk to be disorderly.

Thanks for the reply. 

I managed to find the second line via transposition on page 203 of Mikhalevski's book by transposition (with the move order 9 Re1!? Be7 10 c3 0-0 11 Nd4! - his punctuation) and he gives the new move 11...Bh4!? leading to equality.

The first line appears to be independent indeed, but I don't see any particular problems after 10...Bg4 11 h3 Bh5.

By the way, looking through GM13, I noticed that Mikhalevski suggests meeting 9 c3 with 9...Bc5. Is there any reason why 9...Be7 isn't just going to transpose to some other line in the repertoire (e.g. 10 Be3 -> 9 Be3 Be7 10 c3; 10 Nbd2 Nc5 -> 9 Nbd2 Nc5 10 c3 Be7)?

I'd always been under the impression that the Open Spanish was a good way for Black to imbalance the play and go for a win. However, now that I'm actually sitting down to look at some theory from the Black side, I'm not really sure how Black can purport to play for a win in the main line [1 e4 e5 2 Nf3 Nc6 3 Bb5 a6 4 Ba4 Nf6 5 0-0 Nxe4 6 d4 b5 7 Bb3 d5 8 dxe5 Be6] 9 Nbd2.

Currently trendy (and suggested in GM13) is 9...Nc5 10 c3 Be7 11 Bc2 d4, but there White can (among other things) force a two results ending with 12 Nb3 d3 13 Nxc5 and so on. 

Another interesting line that was featured in some high level games is the following:





Neither of these look especially inspiring though...

Thoughts?