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Subject: Re: About a RL Exchange variation in Rebel 9's book...

Author: Wybe Koopmans

Date: 08:54:19 04/11/98

Go up one level in this thread


On April 11, 1998 at 09:48:23, Francois Bertin wrote:

>	I am currently studying a variation against the Ruy Lopez Exchange, The
>main line seems to go like this:
>
>	 1.e4 	e5
>	 2.Nf3	Nc6
>	 3.Bb5	a6
>	 4.Bxc6	dxc6
>	 5.O-O	Ne7
>
>  According to Soltis, this move was proposed and analysed
>by Keres in the '70.
>
>	 6.Nxe5	Qd4
>	 7.Qh5	g6
>	 8.Qg5	Bg7
>	 9.Nd3	f5
>	10.e5	c5
>	11.b3	h6
>	12.Qg3	f4
>	13.Qf3 Bf5
>	14.Bb2 Qd5
>
>  Here, the books I have on the subject offer 15.Nxf4 Qxf3
>16.gxf3 O-O 17.d3 Nc6 18.Nd2 Nxe5 with unclear play.

The key-game (see New in Chess, yearbook 27, page 85)

[Site "Sochi"]
[Date "1975"]
[White "Vladimirov"]
[Black "Ivanov"]
[Result "1/2-1/2"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. 0-0 Ne7 6. Nxe5 Qd4 7. Qh5
g6 8. Qg5 Bg7 9. Nd3 f5 10. e5 c5 11. b3 h6 12. Qg3 f4 13. Qf3 Bf5 14.
Bb2
Qd5 15. Nxf4 Qxf3 16. gxf3 0-0 17. d3 Nc6 18. Nd2 Nxe5 19. Rab1 Rae8 20.
Rfe1
Rf7 21. Nd5 c6 22. Nb6 Rfe7 23. Ba3 Nd7 24. Rxe7 Rxe7 25. Nxd7 Bxd7 26.
Bxc5
Re2 27. Be3 Bh3 28. Rd1 h5 29. c4 Bf8 30. c5 Be7 31. b4 Kf7 32. a3 Bh4
33. d4 Be7 34. a4 Ke8 35. Nc4 Ra2 36. Re1 Kf7 37. a5
1/2-1/2

>I tried the line against Rebel but on move 15, still in its book,
>it played Qxd5 instead of Nxf4. It is the only move in its book
>in that position.

>  I have searched for that alternative in ECO (2nd ed.), MCO13,
>a few monographies and several databases and I have only found
>one game, played in 1996.

> I don't know if this move is better or worse than Nxf4, but it seems
>to be a  novelty.

[Site "Hospitalet open"]
[Date "1993"]
[Round "9"]
[White "Arbouche,M"]
[Black "Campos Moreno,J"]
[Result "0-1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. 0-0 Ne7 6. Nxe5 Qd4 7. Qh5
g6 8. Qg5 Bg7 9. Nd3 f5 10. e5 c5 11. b3 h6 12. Qg3 f4 13. Qf3 Bf5 14.
Bb2
Qd5 15. Qxd5 Nxd5

Afther: 16. Nc3 Nxc3 dxc3! white stands slightly better.

16. Nxc5 b6 17. Na4 Bxc2 18. d4 0-0-0 19. Rc1 Bf5 20. a3
Kb7 21. Nd2 Ne7 22. Nf3 g5 23. Rc3 Rd7 24. Rac1 Rhd8 25. Ne1 Nc8 26. Nc2
Bf8 27. Kf1 Na7 28. Nb4 Bxb4 29. axb4 Be6 30. Rd3 Kb8 31. Rdc3 Nb5 32.
Rc6
Bxb3 33. e6 Re7 34. d5 Rxd5 35. Bf6 Re8
0-1

>The databases I have searched in are Rebel's
>Million Base and Top Base (on the Bonus CD-ROM), the Ultimate
>Game Collection II and the 400,000 games collection that came with CA2
>when I bought it. I have also looked in the game collection available at
>ftp.pitt.edu.
>
>To Ed and Jeroen: As this move does not seem to exist in the
>current theory (As far as I know...), I was wondering if it a personal
>choice of Jeroen or a suggestion from some chess player conseilling
>the design team?
>
>	Thanks,
>			Francois Bertin
>			fbertin@gm.gamemaster.qc.ca



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