Amateur defeats Zarkov....

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Amateur defeats Zarkov....

Postby Nicolas Normand » 12 Mar 2004, 07:27

Geschrieben von: / Posted by: Nicolas Normand at 12 March 2004 07:27:16:

Hello,
i have just start the Zonal 1 ( USA) tournament ... and the first surprise occurs....
Amateur defeats (clearly ) Zarkov !
here is the game :
[Event "Zonal1: USA"]
[Site "?"]
[Date "2004.03.11"]
[Round "1"]
[White "Zarkov 4.67"]
[Black "Amateur 2.70"]
[Result "0-1"]
[ECO "B67/10"]
[Opening "Sicilian"]
[Time "18:46:33"]
[Variation "Richter-Rauzer, Rauzer attack (...a6...Bd7) defence"]
[TimeControl "40/600:40/600:40/600"]
[Termination "normal"]
[PlyCount "84"]
[WhiteType "program"]
[BlackType "program"]
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 8.
O-O-O Bd7 9. f4 b5 10. Nxc6 Bxc6 11. Bd3 Be7
{
Now amateur is out of book.
}
12. e5 dxe5 13. fxe5 Nd7 14. Bxe7 Qxe7 15. Be4 Nxe5 16. Qf4
{
And Zarkov begin to think. he gave a central pawn with his opening
}
16... Bxe4 17. Qxe5 Bg6
{
The Bishop is active here.
}
18. Qxg7
{
Zarkov take back his pawn , but he exchange a good central pawn for a king side pawn ....
and now white gets a central passed ( and protected ) pawn.
}
18... Qg5+ 19. Rd2
{
obviously the only move.. If 19.Kb1?? Bxc2+! winning the queen
}
19... Ke7 20. Ne4 Qf4
{
Amateur continues to pin the white rook , protects f7 , and control f2!
}
21. Nd6 Rhc8!!
{
press on c2, now the white position will collapse !
}
22. Nxc8+ Rxc8
{
Black threats Rxc2 winnig the white rook}
23. Qd4 Rxc2+ 24. Kd1 Qxd4 25. Rxd4 Rxb2 26. Re1 Rxa2 27. Re2 Rxe2 28. Kxe2
{
Now black exchange a rook for a knigth and 3 pawns ! In front of a Bishop and 3 pawns ( two are passed an dlinked) the white rook is useless.
}
28... a5
{
Go on !
}
29. Kd2 f6 30. Kc3 Bf7 31. Rd1 e5 32. Ra1 a4 33. Kb4 Bc4
{
Here is a fortress very hard to destroy.... I guess that the best chance for white consist in the exchange of the Rook vs the Bishop and the pawn...but i am not sure.
}
34. Ra3 e4 35. Rh3 Ke6
{
Now the king advance to support his pawn
}
36. Rxh7?
{
Now the pawn will reach the e2 square
}
36... e3 37. Rh8 e2 38. Re8+ Kd6 39. Re3
{
I prefer Kc3 , to avoid the advance of the black king
}
39... Kd5 40. Re8 Kd4 41. Ka3 Bd3 42. Kb4
{White resigns} 0-1
regards
Nicolas
Nicolas Normand
 

Re: Amateur defeats Zarkov....

Postby Olivier Deville » 12 Mar 2004, 07:39

Geschrieben von: / Posted by: Olivier Deville at 12 March 2004 07:39:20:
Als Antwort auf: / In reply to: Amateur defeats Zarkov.... geschrieben von: / posted by: Nicolas Normand at 12 March 2004 07:27:16:
Hello,
i have just start the Zonal 1 ( USA) tournament ... and the first surprise occurs....
Amateur defeats (clearly ) Zarkov !
(snip)
Hi Nicolas
In my last tourney Zarkov was ranked behind Amateur : look at http://loirechecs.chez.tiscali.fr/chess ... 004BSt.htm.
In Leo's tournament, Zarkov 4.5e is among the top engines, there is no explanation for the bad results of versions 4.6x
John Stanback will be certainly interested by the commented game.
Olivier


ChessWar
Olivier Deville
 

Re: Amateur defeats Zarkov....

Postby Nicolas Normand » 12 Mar 2004, 07:51

Geschrieben von: / Posted by: Nicolas Normand at 12 March 2004 07:51:46:
Als Antwort auf: / In reply to: Re: Amateur defeats Zarkov.... geschrieben von: / posted by: Olivier Deville at 12 March 2004 07:39:20:
Hello,
i have just start the Zonal 1 ( USA) tournament ... and the first surprise occurs....
Amateur defeats (clearly ) Zarkov !
(snip)
Hi Nicolas
In my last tourney Zarkov was ranked behind Amateur : look at http://loirechecs.chez.tiscali.fr/chess ... 004BSt.htm.
In Leo's tournament, Zarkov 4.5e is among the top engines, there is no explanation for the bad results of versions 4.6x
John Stanback will be certainly interested by the commented game.
Olivier

Hello Olivier ,
In my own rating list Zarkov is not so weack... i found the 21th move of amateur really strong...
It seems that there is no chance after that for Zarkov ...
regards
Nicolas
Nicolas Normand
 

Re: Amateur defeats Zarkov....

Postby Will Singleton » 12 Mar 2004, 08:43

Geschrieben von: / Posted by: Will Singleton at 12 March 2004 08:43:19:
Als Antwort auf: / In reply to: Re: Amateur defeats Zarkov.... geschrieben von: / posted by: Nicolas Normand at 12 March 2004 07:51:46:
Hello,
i have just start the Zonal 1 ( USA) tournament ... and the first surprise occurs....
Amateur defeats (clearly ) Zarkov !
(snip)
Hi Nicolas
In my last tourney Zarkov was ranked behind Amateur : look at http://loirechecs.chez.tiscali.fr/chess ... 004BSt.htm.
In Leo's tournament, Zarkov 4.5e is among the top engines, there is no explanation for the bad results of versions 4.6x
John Stanback will be certainly interested by the commented game.
Olivier
Hello Olivier ,
In my own rating list Zarkov is not so weack... i found the 21th move of amateur really strong...
It seems that there is no chance after that for Zarkov ...
regards
Nicolas
I don't know. It seems Zarkov just blundered with 20.Ne4. After that, things were pretty much over. I'm surprised it played that, I tried a few other engines, no one else plays it.
Will
Will Singleton
 

Re: Amateur defeats Zarkov....

Postby Nicolas Normand » 12 Mar 2004, 09:23

Geschrieben von: / Posted by: Nicolas Normand at 12 March 2004 09:23:31:
Als Antwort auf: / In reply to: Re: Amateur defeats Zarkov.... geschrieben von: / posted by: Will Singleton at 12 March 2004 08:43:19:
Hello,
i have just start the Zonal 1 ( USA) tournament ... and the first surprise occurs....
Amateur defeats (clearly ) Zarkov !
(snip)
Hi Nicolas
In my last tourney Zarkov was ranked behind Amateur : look at http://loirechecs.chez.tiscali.fr/chess ... 004BSt.htm.
In Leo's tournament, Zarkov 4.5e is among the top engines, there is no explanation for the bad results of versions 4.6x
John Stanback will be certainly interested by the commented game.
Olivier
Hello Olivier ,
In my own rating list Zarkov is not so weack... i found the 21th move of amateur really strong...
It seems that there is no chance after that for Zarkov ...
regards
Nicolas
I don't know. It seems Zarkov just blundered with 20.Ne4. After that, things were pretty much over. I'm surprised it played that, I tried a few other engines, no one else plays it.
Will

Hello ,
when i saw your post , i try Fritz 5.32 , to check the possible Blunder ...
Fritz doesn't think during analysis , that Ne4 is a blunder ...
During 15 secondes he analyses
20.h4 Qe3 21.Qd4 Qxd4 22.Rxd4 Rad8 23.Rxd8 (-0.03) as the best move ...
Then he split to
20.Ne4 Qf4 21.Nd6 Rhd8 as the best move (and line ) for white....
After 40-45 secondes this line is discarded with the following moves ...
20.Ne4 Qf4 21.Nd6 Rhc8 22.Nxc8 Rxc8 (0.00)
and he prefers then to play 20.h4 ....but for fritz there is no blunder at all !
i will continue the analysis with Fritz 8 , Junior 8 and the King 3.23....
i will analyse this evening ...
regards
Nicolas
Nicolas Normand
 

Re: Amateur defeats Zarkov....

Postby Uri Blass » 12 Mar 2004, 10:05

Geschrieben von: / Posted by: Uri Blass at 12 March 2004 10:05:09:
Als Antwort auf: / In reply to: Re: Amateur defeats Zarkov.... geschrieben von: / posted by: Will Singleton at 12 March 2004 08:43:19:
Hello,
i have just start the Zonal 1 ( USA) tournament ... and the first surprise occurs....
Amateur defeats (clearly ) Zarkov !
(snip)
Hi Nicolas
In my last tourney Zarkov was ranked behind Amateur : look at http://loirechecs.chez.tiscali.fr/chess ... 004BSt.htm.
In Leo's tournament, Zarkov 4.5e is among the top engines, there is no explanation for the bad results of versions 4.6x
John Stanback will be certainly interested by the commented game.
Olivier
Hello Olivier ,
In my own rating list Zarkov is not so weack... i found the 21th move of amateur really strong...
It seems that there is no chance after that for Zarkov ...
regards
Nicolas
I don't know. It seems Zarkov just blundered with 20.Ne4. After that, things were pretty much over. I'm surprised it played that, I tried a few other engines, no one else plays it.
Will
I tried to see what yace is going to say after learning that 20.Ne4 is bad
It seems that the real losing blunder was 21.Nd6 and not 20.Ne4
I went backward and got the following analysis with my slow P850
It seems that 21.Re1 saves the game for white
Zarkov 4.67 - Amateur 2.70
r6r/4kpQp/p3p1b1/1p6/4Nq2/8/PPPR2PP/2K4R w - - 0 1
Analysis by Yace Paderborn:
21.Qxh8 Rxh8
-+ (-4.38) Depth: 1 00:00:00
21.Rg1 Bxe4
-+ (-2.94) Depth: 1 00:00:00
21.Re1 Bxe4
-+ (-2.67) Depth: 1 00:00:00
21.Rhd1 Bxe4
-+ (-2.34) Depth: 1 00:00:00
21.Nc5
± (0.99) Depth: 1 00:00:00
21.Nc5
± (0.99) Depth: 1 00:00:00
21.Nc5 Rhd8
² (0.49) Depth: 2 00:00:00
21.Nc5 Rhd8
² (0.49) Depth: 2 00:00:00
21.Nc5 Rhd8
² (0.49) Depth: 2 00:00:00
21.Nc5 Rhd8 22.Nb3 Rxd2 23.Nxd2
= (0.03) Depth: 3 00:00:00
21.Ng3 Qf6 22.Qxf6+ Kxf6
= (0.07) Depth: 3 00:00:00
21.Ng3 Rac8 22.c3
² (0.34) Depth: 3 00:00:00
21.Ng3 Rac8 22.c3
² (0.34) Depth: 3 00:00:00
21.Ng3 Rac8 22.Re1 Bxc2 23.Rxe6+ Kxe6 24.Qxh8
= (-0.15) Depth: 4/10 00:00:00
21.Ng3 Rac8 22.c3 Rhd8
= (-0.16) Depth: 4/10 00:00:00
21.Nc5 Bxc2 22.Kxc2 Rhd8
= (-0.15) Depth: 4/10 00:00:00
21.Nc5 Rhd8 22.Nb3 Rac8
= (-0.05) Depth: 4/10 00:00:00
21.Nc5 Rhd8 22.Nb3 Rac8
= (-0.05) Depth: 4/10 00:00:00
21.Nc5 Rhd8 22.Rhd1 Rxd2 23.Rxd2
= (-0.24) Depth: 5/10 00:00:00
21.Ng3 Rhd8 22.Rhd1 b4
= (-0.23) Depth: 5/10 00:00:00
21.Ng3 Rac8 22.c3 Rhg8 23.Qd4 Qxd4
= (-0.15) Depth: 5/10 00:00:00
21.Ng3 Rac8 22.c3 Rhg8 23.Qd4 Qxd4
= (-0.15) Depth: 5/10 00:00:00
21.Ng3 Rhd8 22.Rhd1 Rxd2 23.Rxd2 Rd8 24.Qc3 Rxd2 25.Qxd2 Qxd2+ 26.Kxd2
³ (-0.30) Depth: 6/18 00:00:00 124kN
21.Ng3 Rhd8 22.Rhd1 Rxd2 23.Rxd2 Rd8 24.Qc3 Rxd2 25.Qxd2 Qxd2+ 26.Kxd2
³ (-0.30) Depth: 6/19 00:00:00 178kN
21.Ng3 Rac8 22.c3 Rcd8 23.Qxh8 Rxh8 24.Rhd1
³ (-0.70) Depth: 7/19 00:00:00 311kN
21.Ng3 Rac8 22.c3 Rcd8 23.Rhd1 Rhg8 24.Ne2 Rxd2 25.Nxf4 Rxd1+
µ (-0.71) Depth: 7/23 00:00:00 328kN
21.Ng3 Rac8 22.c3 Rcd8 23.Rhd1 Rhg8 24.Ne2 Rxd2 25.Nxf4 Rxd1+
µ (-0.71) Depth: 7/23 00:00:01 604kN
21.Ng3 Rac8 22.c3 Rcd8 23.Qxf7+ Bxf7 24.Ne2 Rxd2 25.Nxf4
µ (-1.11) Depth: 8/23 00:00:01 686kN
21.Ng3 Rac8 22.c3 Rcd8 23.Qxf7+ Bxf7 24.Ne2 Rxd2 25.Nxf4
-+ (-2.11) Depth: 8/23 00:00:02 876kN
21.Ng3 Rac8 22.c3 Rcd8 23.Rhd1 Rhg8 24.Nh5 Bxh5
-+ (-2.82) Depth: 8/25 00:00:02 1141kN
21.Nc5 Rhd8 22.Rhd1 Rxd2 23.Rxd2 Rc8 24.g3 Qxg3
-+ (-2.81) Depth: 8/26 00:00:03 1545kN
21.Nc5 Rhd8 22.Rhd1 Rxd2 23.Rxd2 Rd8 24.Nd3 Bxd3 25.cxd3 Qxh2
-+ (-1.42) Depth: 8/28 00:00:04 1966kN
21.Nc5 Rhd8 22.Rhd1 Rxd2 23.Rxd2 Rd8 24.Nd3 Bxd3 25.cxd3 Qxh2
-+ (-1.42) Depth: 8/28 00:00:06 2926kN
21.Nc5 Rhd8 22.Rhd1 Rxd2 23.Rxd2 Rd8 24.Nd3 Bxd3 25.cxd3 Rc8+ 26.Kd1
-+ (-1.55) Depth: 9/28 00:00:08 3782kN
21.Nf6 Rhd8 22.Rhd1 Rac8 23.c3 Rxd2 24.Rxd2 Rd8 25.Ng8+ Ke8
-+ (-1.54) Depth: 9/30 00:00:18 8310kN
21.Nf6 Rhd8 22.Rhd1 Rxd2 23.Rxd2 Qxf6 24.Rd7+ Kxd7 25.Qxf6 Bxc2
µ (-1.02) Depth: 9/30 00:00:20 9357kN
21.Nf6 Rac8 22.c3 b4 23.g3 Qe3 24.Nd7 Qf3 25.Rhd1
= (-0.21) Depth: 9/30 00:00:24 10966kN
21.Nf6 Rac8 22.c3 b4 23.g3 Qe3 24.Nd7 Qf3 25.Rhd1
= (-0.21) Depth: 9/30 00:00:24 11104kN
21.Nf6 Rac8 22.c3 Rhd8 23.Rhd1 b4 24.g3 bxc3 25.bxc3 Rxc3+ 26.Kb2 Rxd2+ 27.Ka1
³ (-0.61) Depth: 10/30 00:00:26 11940kN
21.Nf6 Rac8 22.c3 Rhd8 23.Rhd1 b4 24.g3 bxc3 25.bxc3 Rxc3+ 26.Kb2 Rxd2+ 27.Ka1
-+ (-1.61) Depth: 10/30 00:00:28 12726kN
21.Nf6 Rac8 22.c3 Rhd8 23.Rhd1 b4 24.Nxh7 bxc3 25.bxc3 Bxh7 26.g3
-+ (-2.30) Depth: 10/36 00:00:35 15927kN
21.Re1 Bxe4 22.g3 Qf5 23.Qc3 a5 24.Qd4 Bxc2 25.Rxc2 Ke8
-+ (-2.29) Depth: 10/36 00:00:48 21960kN
21.Re1 Bxe4 22.g3 Qf5 23.Qd4 Bf3 24.Re5 Qg4 25.Qd6+ Kf6 26.Kb1
-+ (-2.10) Depth: 10/36 00:00:51 23738kN
21.Nd6 Rhc8 22.Nxc8+ Rxc8 23.Kd1 Bxc2+ 24.Rxc2 Rd8+ 25.Ke1 Qe3+ 26.Re2 Qc1+ 27.Kf2 Qf4+ 28.Ke1 Rc8 29.Rd2 Rc1+ 30.Ke2 Rxh1 31.Rd4 Qf1+ 32.Ke3 Qc1+ 33.Kf3 Rxh2 34.Rf4
-+ (-1.87) Depth: 10/36 00:01:01 27996kN
21.Nd6 Rhc8 22.Nxc8+ Rxc8 23.Kd1 Bxc2+ 24.Rxc2 Rd8+ 25.Ke1 Qe3+ 26.Re2 Qc1+ 27.Kf2 Qf4+ 28.Ke1 Rc8 29.Rd2 Rc1+ 30.Ke2 Rxh1 31.Rd4 Qf1+ 32.Ke3 Qc1+ 33.Kf3 Rxh2 34.Rf4
-+ (-1.87) Depth: 10/36 00:01:01 27996kN
21.Nd6 Rhc8 22.Nxc8+ Rxc8 23.Kd1 Bxc2+ 24.Rxc2 Rd8+ 25.Ke1 Qe3+ 26.Re2 Qc1+ 27.Kf2 Qf4+ 28.Ke1 Rc8 29.Rd2 Rc1+ 30.Ke2 Rxh1 31.Rd4 Qf1+ 32.Ke3 Qc1+ 33.Kf3 Rxh2 34.Rf4
-+ (-1.87) Depth: 10/36 00:01:03 28843kN
21.Nd6 Rhc8 22.Nxc8+ Rxc8 23.Kd1 Bxc2+ 24.Rxc2 Rd8+ 25.Ke1 Qe3+ 26.Re2 Qc1+ 27.Kf2 Qf4+ 28.Ke1 Rc8 29.Rd2 Rc1+ 30.Ke2 Rxh1 31.Rd4 Qf1+ 32.Ke3 Qc1+ 33.Kf3 Rxh2 34.Rf4
-+ (-1.87) Depth: 11/36 00:01:03 28843kN
21.Re1 Bxe4 22.g3 Qf5 23.Qd4 Bf3 24.Qb4+ Ke8 25.Qc3 Rc8 26.Qxc8+ Ke7
-+ (-1.86) Depth: 11/37 00:01:13 33901kN
21.Re1 Bxe4 22.g3 Qf5 23.Qd4 Bf3 24.Qb4+ Ke8 25.Qc3 Rc8 26.Qxc8+ Ke7
-+ (-1.47) Depth: 11/43 00:01:24 38450kN
21.Re1 Bxe4 22.g3 Qf5 23.Qc3 a5 24.g4 Qxg4 25.Qc5+ Kf6 26.Qd4+ e5 27.Rxe4 exd4
³ (-0.60) Depth: 11/43 00:01:34 43485kN
21.Re1 Bxe4 22.g3 Qf5 23.Qc3 a5 24.g4 Qxg4 25.Qc5+ Kf6 26.Qd4+ e5 27.Rxe4 exd4
³ (-0.60) Depth: 11/43 00:02:10 60131kN
21.Re1 Bxe4 22.g3 Qf5 23.Qd4 Rhd8 24.Qxe4 Qxe4 25.Rxe4 Rxd2 26.Kxd2 f5 27.Re5 Rd8+
= (-0.24) Depth: 12/43 00:02:58 83280kN
21.Re1 Bxe4 22.g3 Qf5 23.Qd4 Rhd8 24.Qxe4 Qxe4 25.Rxe4 Rxd2 26.Kxd2 f5 27.Re5 Rd8+
= (-0.24) Depth: 12/43 00:04:32 128498kN
21.Re1 Bxe4 22.g3 Qf5 23.Qd4 Rhd8 24.Qxe4 Qxe4 25.Rxe4 Rxd2 26.Kxd2 Rd8+ 27.Ke3 h5 28.Rd4 Rxd4
= (-0.23) Depth: 13/43 00:07:22 209243kN
Uri
Uri Blass
 

here is the complete Fritz 5.32 analysis ....

Postby Nicolas Normand » 12 Mar 2004, 10:25

Geschrieben von: / Posted by: Nicolas Normand at 12 March 2004 10:25:44:
Als Antwort auf: / In reply to: Re: Amateur defeats Zarkov.... geschrieben von: / posted by: Will Singleton at 12 March 2004 08:43:19:

[Event "Zonal1: USA"]
[Site "?"]
[Date "2004.03.11"]
[Round "1"]
[White "Zarkov 4.67"]
[Black "Amateur 2.70"]
[Result "0-1"]
[ECO "B67/10"]
[Opening "Sicilian"]
[Time "18:46:33"]
[Variation "Richter-Rauzer, Rauzer attack (...a6...Bd7) defence"]
[TimeControl "40/600:40/600:40/600"]
[Termination "normal"]
[PlyCount "84"]
[WhiteType "program"]
[BlackType "program"]
[Annotator "Fritz 5.32"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 {Secure d5+f5}
7. Qd2 a6 {Control b5} 8. O-O-O Bd7 9. f4 b5 10. Nxc6 Bxc6 11. Bd3 $11 (11. e5
dxe5 12. Qxd8+ (12. fxe5 $143 Qxd2+ 13. Bxd2 Nd7 $15) 12... Rxd8 13. Rxd8+ (13.
fxe5 $143 Rxd1+ 14. Nxd1 Nd7 $15) 13... Kxd8 14. fxe5 $11) 11... Be7 12. e5 {
White are gaining space} 12... dxe5 13. fxe5 Nd7 14. Bxe7 {
Trap the king in the center} 14... Qxe7 15. Be4 Nxe5 16. Qf4 Bxe4 17. Qxe5 Bg6 (
17... Bxg2 $2 {Is useless because of } 18. Qxg7 Bxh1 19. Qxh8+ Qf8 20. Qxf8+ Kxf8
21. Rxh1 $18) 18. Qxg7 {Black cannot castle} 18... Qg5+
19. Rd2 Ke7 20. Ne4 Qf4 21. Nd6 Rhc8 {threathening checkmate-how?} 22. Nxc8+ Rxc8 23.
Qd4 Rxc2+ 24. Kd1 {threathening checkmate: Qd8} 24... Qxd4 25. Rxd4 Rxb2 (25... Rxg2 $6
26. Rd2 Rg5 27. Re1 $15) 26. Re1 Rxa2 27. Re2 Rxe2 28. Kxe2 a5 29. Kd2 f6 30.
Kc3 Bf7 31. Rd1 e5 32. Ra1 a4 33. Kb4 Bc4 34. Ra3 e4 35. Rh3 Ke6 36. Rxh7 e3
37. Rh8 e2 38. Re8+ Kd6 {With the decisive threat Be6} 39. Re3 Kd5 40. Re8 Kd4 {
What is black threat ?} 41. Ka3 (41. Re7 $19 {Last chance for Counter play
}) 41... Bd3 42. Kb4 0-1
Nicolas Normand
 

Re: Amateur defeats Zarkov....

Postby Richard Pijl » 12 Mar 2004, 11:03

Geschrieben von: / Posted by: Richard Pijl at 12 March 2004 11:03:02:
Als Antwort auf: / In reply to: Re: Amateur defeats Zarkov.... geschrieben von: / posted by: Nicolas Normand at 12 March 2004 09:23:31:
Hello,
i have just start the Zonal 1 ( USA) tournament ... and the first surprise occurs....
Amateur defeats (clearly ) Zarkov !
(snip)
Hi Nicolas
In my last tourney Zarkov was ranked behind Amateur : look at http://loirechecs.chez.tiscali.fr/chess ... 004BSt.htm.
In Leo's tournament, Zarkov 4.5e is among the top engines, there is no explanation for the bad results of versions 4.6x
John Stanback will be certainly interested by the commented game.
Olivier
Hello Olivier ,
In my own rating list Zarkov is not so weack... i found the 21th move of amateur really strong...
It seems that there is no chance after that for Zarkov ...
regards
Nicolas
I don't know. It seems Zarkov just blundered with 20.Ne4. After that, things were pretty much over. I'm surprised it played that, I tried a few other engines, no one else plays it.
Will

Hello ,
when i saw your post , i try Fritz 5.32 , to check the possible Blunder ...
Fritz doesn't think during analysis , that Ne4 is a blunder ...
During 15 secondes he analyses
20.h4 Qe3 21.Qd4 Qxd4 22.Rxd4 Rad8 23.Rxd8 (-0.03) as the best move ...
Then he split to
20.Ne4 Qf4 21.Nd6 Rhd8 as the best move (and line ) for white....
After 40-45 secondes this line is discarded with the following moves ...
20.Ne4 Qf4 21.Nd6 Rhc8 22.Nxc8 Rxc8 (0.00)
and he prefers then to play 20.h4 ....but for fritz there is no blunder at all !
i will continue the analysis with Fritz 8 , Junior 8 and the King 3.23....
i will analyse this evening ...
regards
Nicolas
It probably needs a little more time. After forcing Ne4 the Baron gets fail highs on Qf4. But it takes quite a while on my P3-500 (8.5 minutes)
On the position _before_ Ne4 the Baron says white is a little better (+0.37)after 43 minutes of thinking (on 20.h4).
Richard.
Richard Pijl
 

Re: Amateur defeats Zarkov....

Postby Nicolas Normand » 12 Mar 2004, 11:23

Geschrieben von: / Posted by: Nicolas Normand at 12 March 2004 11:23:05:
Als Antwort auf: / In reply to: Re: Amateur defeats Zarkov.... geschrieben von: / posted by: Richard Pijl at 12 March 2004 11:03:02:
Hello,
i have just start the Zonal 1 ( USA) tournament ... and the first surprise occurs....
Amateur defeats (clearly ) Zarkov !
(snip)
Hi Nicolas
In my last tourney Zarkov was ranked behind Amateur : look at http://loirechecs.chez.tiscali.fr/chess ... 004BSt.htm.
In Leo's tournament, Zarkov 4.5e is among the top engines, there is no explanation for the bad results of versions 4.6x
John Stanback will be certainly interested by the commented game.
Olivier
Hello Olivier ,
In my own rating list Zarkov is not so weack... i found the 21th move of amateur really strong...
It seems that there is no chance after that for Zarkov ...
regards
Nicolas
I don't know. It seems Zarkov just blundered with 20.Ne4. After that, things were pretty much over. I'm surprised it played that, I tried a few other engines, no one else plays it.
Will

Hello ,
when i saw your post , i try Fritz 5.32 , to check the possible Blunder ...
Fritz doesn't think during analysis , that Ne4 is a blunder ...
During 15 secondes he analyses
20.h4 Qe3 21.Qd4 Qxd4 22.Rxd4 Rad8 23.Rxd8 (-0.03) as the best move ...
Then he split to
20.Ne4 Qf4 21.Nd6 Rhd8 as the best move (and line ) for white....
After 40-45 secondes this line is discarded with the following moves ...
20.Ne4 Qf4 21.Nd6 Rhc8 22.Nxc8 Rxc8 (0.00)
and he prefers then to play 20.h4 ....but for fritz there is no blunder at all !
i will continue the analysis with Fritz 8 , Junior 8 and the King 3.23....
i will analyse this evening ...
regards
Nicolas
It probably needs a little more time. After forcing Ne4 the Baron gets fail highs on Qf4. But it takes quite a while on my P3-500 (8.5 minutes)
On the position _before_ Ne4 the Baron says white is a little better (+0.37)after 43 minutes of thinking (on 20.h4).
Richard.
so this means that theposition is not so easy to analyse for an engine... fritz nedds several minutes to advocate 20.h4....
As you can see in fritz analysis ( with few time per move ) , Fritz doesn't see any blunder...
The game was play by Zarkov ( and amateur ) with 10 minutes to play 40 moves ( 15 secondes per moves ) ....
probably Zarkov fall in a hole ....;
regards
Nicolas
Nicolas Normand
 

Re: Amateur defeats Zarkov....

Postby Richard Pijl » 12 Mar 2004, 11:41

Geschrieben von: / Posted by: Richard Pijl at 12 March 2004 11:41:04:
Als Antwort auf: / In reply to: Re: Amateur defeats Zarkov.... geschrieben von: / posted by: Nicolas Normand at 12 March 2004 11:23:05:
Hello ,
when i saw your post , i try Fritz 5.32 , to check the possible Blunder ...
Fritz doesn't think during analysis , that Ne4 is a blunder ...
During 15 secondes he analyses
20.h4 Qe3 21.Qd4 Qxd4 22.Rxd4 Rad8 23.Rxd8 (-0.03) as the best move ...
Then he split to
20.Ne4 Qf4 21.Nd6 Rhd8 as the best move (and line ) for white....
After 40-45 secondes this line is discarded with the following moves ...
20.Ne4 Qf4 21.Nd6 Rhc8 22.Nxc8 Rxc8 (0.00)
and he prefers then to play 20.h4 ....but for fritz there is no blunder at all !
i will continue the analysis with Fritz 8 , Junior 8 and the King 3.23....
i will analyse this evening ...
regards
Nicolas
It probably needs a little more time. After forcing Ne4 the Baron gets fail highs on Qf4. But it takes quite a while on my P3-500 (8.5 minutes)
On the position _before_ Ne4 the Baron says white is a little better (+0.37)after 43 minutes of thinking (on 20.h4).
Richard.
so this means that theposition is not so easy to analyse for an engine... fritz nedds several minutes to advocate 20.h4....
The position is certainly not easy. But the Baron never considered Ne4 and went for either Rd1 or h4 from the start.
I'm currently checking the position after 20.Qf4 as Uri said that Re1 might save the position. Currently, after 32 minutes the Baron says that the position after Re1 is probably a little better for black, but not by much.
Analysis on a P3-500:

 ply       time        nodes   score  pv
  4( 9).   0:00.20     10703   +0.59  Ne4-d6 Rh8-g8 Qg7-d4 Qf4xd4
  5(12)-   0:00.54     31319   +0.24  Ne4-d6 (Rh8-d8) (g2-g3) (Qf4-e3) (Kc1-d1)
  5(12)&   0:00.65     37761   -0.11  Ne4-d6 Rh8-d8 Qg7-c3 Bg6xc2 g2-g3
  5(12)>   0:00.82     46129   -0.10  Ne4-c5
  5(12)&   0:00.89     49719   -0.03  Ne4-c5 Rh8-d8 Rh1-d1 Rd8xd2 Rd1xd2 Qf4-f1
                                      Rd2-d1 Qf1xg2
  5(12).   0:00.93     52795   -0.03  Ne4-c5 Rh8-d8 Rh1-d1 Rd8xd2 Rd1xd2 Qf4-f1
                                      Rd2-d1 Qf1xg2
  6(15)>   0:01.84    108356   -0.37  Ne4-d6
  6(15)+   0:01.99    117035   +0.32  Ne4-d6 (Ra8-d8) (g2-g3) (Rd8xd6) (g3xf4) (
Rd6xd2)
  6(15)&   0:02.20    128751   +0.51  Ne4-d6 Rh8-d8 Qg7-c3 e6-e5 g2-g3 Qf4-g5
  6(15).   0:02.73    161782   +0.51  Ne4-d6 Rh8-d8 Qg7-c3 e6-e5 g2-g3 Qf4-g5
  7(17)-   0:11.66    707840   +0.16  Ne4-d6 (Rh8-c8) (g2-g3) (Qf4xd2) (Kc1xd2)
(Rc8xc2)
                                      (Kd2-e1) (Rc2-c1) (Ke1-e2) (Rc1xh1) (Qg7-d
4)
  7(17)&   0:12.72    778349   +0.00  Ne4-d6 Rh8-c8 Nd6xc8 Ra8xc8 Kc1-d1 Bg6-h5
                                      Kd1-c1 Bh5-g6 <rep>
  7(17).   0:13.17    812753   +0.00  Ne4-d6 Rh8-c8 Nd6xc8 Ra8xc8 Kc1-d1 Bg6-h5
                                      Kd1-c1 Bh5-g6 <rep>
  8(19)&   0:19.47   1234470   +0.00  Ne4-d6 Rh8-c8 Nd6xc8 Ra8xc8 Kc1-d1 Bg6-h5
                                      Kd1-c1 Bh5-g6 <rep>
  8(22).   0:25.89   1690542   +0.00  Ne4-d6 Rh8-c8 Nd6xc8 Ra8xc8 Kc1-d1 Bg6-h5
                                      Kd1-c1 Bh5-g6 <rep>
  9(24)&   1:03.25   4143428   -0.20  Ne4-d6 Rh8-c8 Nd6xc8 Ra8xc8 Kc1-d1 Bg6xc2
                                      Rd2xc2 Rc8-d8 Kd1-e1 Qf4-e3 Rc2-e2 Qe3-c1
                                      Ke1-f2 Qc1xh1 Qg7xh7 Rd8-d1
  9(24).   1:37.50   6536326   -0.20  Ne4-d6 Rh8-c8 Nd6xc8 Ra8xc8 Kc1-d1 Bg6xc2
                                      Rd2xc2 Rc8-d8 Kd1-e1 Qf4-e3 Rc2-e2 Qe3-c1
                                      Ke1-f2 Qc1xh1 Qg7xh7 Rd8-d1
 10(27)-   5:49.64  21785038   -0.55  Ne4-d6 (Rh8-c8) (Nd6xc8) (Ra8xc8) (Kc1-d1)
 (Qf4-e3)
                                      (Rh1-f1) (Bg6xc2) (Rd2xc2) (Rc8-d8) (Rc2-d
2) (Rd8xd2)
                                      (Kd1-c1) (Rd2xg2) (Kc1-d1) (Rg2xh2) (Qg7xf
7)
 10(28)-   9:11.63  34724811   -1.45  Ne4-d6 (Rh8-c8) (Nd6xc8) (Ra8xc8) (Kc1-d1)
 (Qf4-e3)
                                      (Rh1-f1) (Bg6xc2) (Rd2xc2)
 10(28)&  10:20.30  39158200   -1.84  Ne4-d6 Rh8-c8 Nd6xc8 Ra8xc8 Kc1-d1 Qf4-e3
                                      c2-c3 Bg6-h5 g2-g4 Qe3-f3 Kd1-c1 Qf3xh1
                                      Rd2-d1 Qh1xh2 g4xh5
 10(28).  11:12.33  42475701   -1.84  Ne4-d6 Rh8-c8 Nd6xc8 Ra8xc8 Kc1-d1 Qf4-e3
                                      c2-c3 Bg6-h5 g2-g4 Qe3-f3 Kd1-c1 Qf3xh1
                                      Rd2-d1 Qh1xh2 g4xh5
 11(28)&  17:13.79  65475731   -1.84  Ne4-d6 Rh8-c8 Nd6xc8 Ra8xc8 Kc1-d1 Qf4-e3
                                      c2-c3 Bg6-h5 g2-g4 Qe3-f3 Kd1-c1 Qf3xh1
                                      Rd2-d1 Qh1xh2 g4xh5 Qh2xh5
 11(31)+  25:38.08  98226127   -1.49  Rh1-e1 (Bg6xe4) (g2-g3) (Qf4-c7) (Qg7-g5)
(Ke7-f8)
                                      (Qg5-f6) (Be4-g6) (Qf6xh8) (Kf8-e7) (Qh8xa
8)
 11(31)+  28:33.24 108753835   -0.59  Rh1-e1 (Rh8-c8) (Qg7-d4) (Bg6xe4) (Qd4-b4)
 (Ke7-f6)
                                      (Qb4xe4) (Qf4xh2)
 11(31)&  32:13.56 122948762   -0.20  Rh1-e1 Bg6xe4 g2-g3 Qf4-f5 Qg7-d4 Be4-f3
                                      Qd4-b4 Ke7-f6 Qb4-c3 e6-e5 Re1-f1 Ra8-c8
                                      Qc3xf3

Richard.
Richard Pijl
 

Re: Amateur defeats Zarkov....

Postby Will Singleton » 12 Mar 2004, 17:26

Geschrieben von: / Posted by: Will Singleton at 12 March 2004 17:26:23:
Als Antwort auf: / In reply to: Re: Amateur defeats Zarkov.... geschrieben von: / posted by: Richard Pijl at 12 March 2004 11:41:04:
Hello ,
when i saw your post , i try Fritz 5.32 , to check the possible Blunder ...
Fritz doesn't think during analysis , that Ne4 is a blunder ...
During 15 secondes he analyses
20.h4 Qe3 21.Qd4 Qxd4 22.Rxd4 Rad8 23.Rxd8 (-0.03) as the best move ...
Then he split to
20.Ne4 Qf4 21.Nd6 Rhd8 as the best move (and line ) for white....
After 40-45 secondes this line is discarded with the following moves ...
20.Ne4 Qf4 21.Nd6 Rhc8 22.Nxc8 Rxc8 (0.00)
and he prefers then to play 20.h4 ....but for fritz there is no blunder at all !
i will continue the analysis with Fritz 8 , Junior 8 and the King 3.23....
i will analyse this evening ...
regards
Nicolas
It probably needs a little more time. After forcing Ne4 the Baron gets fail highs on Qf4. But it takes quite a while on my P3-500 (8.5 minutes)
On the position _before_ Ne4 the Baron says white is a little better (+0.37)after 43 minutes of thinking (on 20.h4).
Richard.
so this means that theposition is not so easy to analyse for an engine... fritz nedds several minutes to advocate 20.h4....
The position is certainly not easy. But the Baron never considered Ne4 and went for either Rd1 or h4 from the start.
I'm currently checking the position after 20.Qf4 as Uri said that Re1 might save the position. Currently, after 32 minutes the Baron says that the position after Re1 is probably a little better for black, but not by much.
Analysis on a P3-500:

Richard.
> ply       time        nodes   score  pv
>  4( 9).   0:00.20     10703   +0.59  Ne4-d6 Rh8-g8 Qg7-d4 Qf4xd4
>  5(12)-   0:00.54     31319   +0.24  Ne4-d6 (Rh8-d8) (g2-g3) (Qf4-e3) (Kc1-d1)
>  5(12)&   0:00.65     37761   -0.11  Ne4-d6 Rh8-d8 Qg7-c3 Bg6xc2 g2-g3
>  5(12)>   0:00.82     46129   -0.10  Ne4-c5
>  5(12)&   0:00.89     49719   -0.03  Ne4-c5 Rh8-d8 Rh1-d1 Rd8xd2 Rd1xd2 Qf4-f1
>                                      Rd2-d1 Qf1xg2
>  5(12).   0:00.93     52795   -0.03  Ne4-c5 Rh8-d8 Rh1-d1 Rd8xd2 Rd1xd2 Qf4-f1
>                                      Rd2-d1 Qf1xg2
>  6(15)>   0:01.84    108356   -0.37  Ne4-d6
>  6(15)+   0:01.99    117035   +0.32  Ne4-d6 (Ra8-d8) (g2-g3) (Rd8xd6) (g3xf4) (
>Rd6xd2)
>  6(15)&   0:02.20    128751   +0.51  Ne4-d6 Rh8-d8 Qg7-c3 e6-e5 g2-g3 Qf4-g5
>  6(15).   0:02.73    161782   +0.51  Ne4-d6 Rh8-d8 Qg7-c3 e6-e5 g2-g3 Qf4-g5
>  7(17)-   0:11.66    707840   +0.16  Ne4-d6 (Rh8-c8) (g2-g3) (Qf4xd2) (Kc1xd2)
>(Rc8xc2)
>                                      (Kd2-e1) (Rc2-c1) (Ke1-e2) (Rc1xh1) (Qg7-d
>4)
>  7(17)&   0:12.72    778349   +0.00  Ne4-d6 Rh8-c8 Nd6xc8 Ra8xc8 Kc1-d1 Bg6-h5
>                                      Kd1-c1 Bh5-g6 <rep>
>  7(17).   0:13.17    812753   +0.00  Ne4-d6 Rh8-c8 Nd6xc8 Ra8xc8 Kc1-d1 Bg6-h5
>                                      Kd1-c1 Bh5-g6 <rep>
>  8(19)&   0:19.47   1234470   +0.00  Ne4-d6 Rh8-c8 Nd6xc8 Ra8xc8 Kc1-d1 Bg6-h5
>                                      Kd1-c1 Bh5-g6 <rep>
>  8(22).   0:25.89   1690542   +0.00  Ne4-d6 Rh8-c8 Nd6xc8 Ra8xc8 Kc1-d1 Bg6-h5
>                                      Kd1-c1 Bh5-g6 <rep>
>  9(24)&   1:03.25   4143428   -0.20  Ne4-d6 Rh8-c8 Nd6xc8 Ra8xc8 Kc1-d1 Bg6xc2
>                                      Rd2xc2 Rc8-d8 Kd1-e1 Qf4-e3 Rc2-e2 Qe3-c1
>                                      Ke1-f2 Qc1xh1 Qg7xh7 Rd8-d1
>  9(24).   1:37.50   6536326   -0.20  Ne4-d6 Rh8-c8 Nd6xc8 Ra8xc8 Kc1-d1 Bg6xc2
>                                      Rd2xc2 Rc8-d8 Kd1-e1 Qf4-e3 Rc2-e2 Qe3-c1
>                                      Ke1-f2 Qc1xh1 Qg7xh7 Rd8-d1
> 10(27)-   5:49.64  21785038   -0.55  Ne4-d6 (Rh8-c8) (Nd6xc8) (Ra8xc8) (Kc1-d1)
> (Qf4-e3)
>                                      (Rh1-f1) (Bg6xc2) (Rd2xc2) (Rc8-d8) (Rc2-d
>2) (Rd8xd2)
>                                      (Kd1-c1) (Rd2xg2) (Kc1-d1) (Rg2xh2) (Qg7xf
>7)
> 10(28)-   9:11.63  34724811   -1.45  Ne4-d6 (Rh8-c8) (Nd6xc8) (Ra8xc8) (Kc1-d1)
> (Qf4-e3)
>                                      (Rh1-f1) (Bg6xc2) (Rd2xc2)
> 10(28)&  10:20.30  39158200   -1.84  Ne4-d6 Rh8-c8 Nd6xc8 Ra8xc8 Kc1-d1 Qf4-e3
>                                      c2-c3 Bg6-h5 g2-g4 Qe3-f3 Kd1-c1 Qf3xh1
>                                      Rd2-d1 Qh1xh2 g4xh5
> 10(28).  11:12.33  42475701   -1.84  Ne4-d6 Rh8-c8 Nd6xc8 Ra8xc8 Kc1-d1 Qf4-e3
>                                      c2-c3 Bg6-h5 g2-g4 Qe3-f3 Kd1-c1 Qf3xh1
>                                      Rd2-d1 Qh1xh2 g4xh5
> 11(28)&  17:13.79  65475731   -1.84  Ne4-d6 Rh8-c8 Nd6xc8 Ra8xc8 Kc1-d1 Qf4-e3
>                                      c2-c3 Bg6-h5 g2-g4 Qe3-f3 Kd1-c1 Qf3xh1
>                                      Rd2-d1 Qh1xh2 g4xh5 Qh2xh5
> 11(31)+  25:38.08  98226127   -1.49  Rh1-e1 (Bg6xe4) (g2-g3) (Qf4-c7) (Qg7-g5)
>(Ke7-f8)
>                                      (Qg5-f6) (Be4-g6) (Qf6xh8) (Kf8-e7) (Qh8xa
>8)
> 11(31)+  28:33.24 108753835   -0.59  Rh1-e1 (Rh8-c8) (Qg7-d4) (Bg6xe4) (Qd4-b4)
> (Ke7-f6)
>                                      (Qb4xe4) (Qf4xh2)
> 11(31)&  32:13.56 122948762   -0.20  Rh1-e1 Bg6xe4 g2-g3 Qf4-f5 Qg7-d4 Be4-f3
>                                      Qd4-b4 Ke7-f6 Qb4-c3 e6-e5 Re1-f1 Ra8-c8
>                                      Qc3xf3
>
Black gets a little better play with Rhc8 instead of Bxe4, and also Bf3 isn't good. But given the time-control, white can't really be faulted for 21.Nd6, while it can for 20.Ne4.
Will Singleton
 


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