Author: Uri Blass
Date: 12:48:31 10/05/01
Go up one level in this thread
On October 05, 2001 at 13:04:09, Uri Blass wrote:
>On October 04, 2001 at 17:25:28, Thorsten Czub wrote:
>
>>hi - i would like to discuss the games that have been played from
>>29.9-03.10 here in berlin.
>>
>>the machines were at least 1200 Mhz Athlons, most programs had
>>1400 Mhz, and Patzer even had - as a dual program - 2x1200 Mhz Athlons.
>>
>>the time control in berlin was 40/90, rest in 30'. Long enough to get a good
>>impression and to observe the games.
>>
>>the first game i want to discuss is the game zarkov4.5T vs. Gambit-Tiger14.6.
>>
>>[Event "1.BELCT2001"]
>>[Site "Berlin"]
>>[Date "2001.09.30"]
>>[Round "2"]
>>[White "Zarkov4.5T"]
>>[Black "Gambit-Tiger14.6"]
>>[Result "0-1"]
>>[TimeControl "7200"]
>>
>>1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. Ba4 Bc5 6. Nxe5 O-O 7. Nd3 Bb6
>>8. e5 Ne8 9. Nd5 d6 10. Ne3 Qg5 11. exd6 Nxd6 12. O-O N4f5 13. Ne1 Nxe3 14.
>>fxe3 Bg4 15. Nf3 Qh5 16. h3 Be6 17. Nd4 Qe5 18. Nxe6 fxe6 19. Bb3 Rxf1+ 20.
>>Kxf1 Rf8+ 21. Kg1 c5 22. Qg4 c4 23. d4 Qf6 24. Qe2 cxb3 25. axb3 e5 26. c3
>>Ne4 27. Bd2 Qf2+ 28. Qxf2 Rxf2 29. Be1 Rxb2 30. b4 exd4 31. cxd4 Re2 32.
>>Kh2 Rxe3 33. Rd1 Nf6 34. d5 Nxd5 35. Bf2 Re7 36. Bxb6 Nxb6 37. b5 Kf7 38.
>>Ra1 Nc8 39. Rf1+ Ke6 40. Ra1 b6 41. Re1+ Kd7 42. Ra1 Re5 43. Kg3 Rxb5 44.
>>Kf4 a5 45. Ke3 Rb2 46. Kf3 Nd6 47. Ra4 Kc6 48. Rh4 b5 49. Rxh7 b4 50. Rh8
>>b3 51. g4
>>{White resigns} 0-1
>>
>>
>>
>>
>>I was operating Zarkov4.5T. Since i know Gambit-Tiger and Zarkov very good,
>>i was shocked when Zarkov played 18.Nxe6?
>>
>>The reason is very obvious from the point of view of a human beeing:
>>
>>white is underdeveloped on the king-side and the knight on d4 is on of the
>>only pieces that could help white. but the exchange on e6 is not only
>>deleting a defender, it also opens the f-line.
>>
>>within nearly a move, black gets advantage and wins this game.
>>
>>i am pretty much confident with the way gambit-tiger reacted.
>>
>>it instantly saw that black gets advantage now.
>>
>>i do NOT think that zarkov is a weak program. in opposite,
>>zarkov 4.5 T played a very good tournament with amazing games. but in THIS
>>game, it made a mistake. maybe the point was to deep.
>>
>>but i know that e.g. gambit-tiger14.6 itself would change from 18.Nxe6 into
>>the much better 18.Ne2 {+0,18}.
>>
>>zarkov4.5T analysis:
>>
>>Move# 18 Clock= 00:00:00 Target= 999999.0
>>00:01.0 117 6-00 35 Nxe6 fxe6 Rxf8+ Rxf8 d4 Qf5 Kh2 Ne4
>>00:01.3 155 7-01 47 Nxe6 fxe6 Rxf8+ Rxf8 d4 Qf5 Kh2 Ne4 Bd2
>>00:01.8 248 7. 47 Nxe6 fxe6 Rxf8+ Rxf8 d4 Qf5 Kh2 Ne4 Bd2
>>00:02.7 436 8-01 38 Nxe6 fxe6 Rxf8+ Rxf8 d4 Qf6 c3 c5 Bc2 Qf2+ Kh2
>>00:04.3 732 8. 38 Nxe6 fxe6 Rxf8+ Rxf8 d4 Qf6 c3 c5 Bc2 Qf2+ Kh2
>>00:10.8 1948 9-01 49 Nxe6 fxe6 c3 Rxf1+ Qxf1 Rf8 Qe1 Ne4 d3 Nf2 d4 Qg5
>>00:13.1 2439 9. 49 Nxe6 fxe6 c3 Rxf1+ Qxf1 Rf8 Qe1 Ne4 d3 Nf2 d4 Qg5
>>00:23.1 4425 10-01 38 Nxe6 fxe6 c3 Rxf1+ Qxf1 Rf8 Qe1 c5 d3 Qd5 d4 Ne4
>>00:33.4 6565 10. 38 Nxe6 fxe6 c3 Rxf1+ Qxf1 Rf8 Qe1 c5 d3 Qd5 d4 Ne4
>>00:54.9 10709 11-01 37 Nxe6 fxe6 c3 Rxf1+ Qxf1 Rf8 Qe1 c5 d3 Nf5 Qf2 Ng3
>>01:24.4 16402 11. 37 Nxe6 fxe6 c3 Rxf1+ Qxf1 Rf8 Qe1 c5 d3 Nf5 Qf2 Ng3
>>02:47.4 32187 12-01 14 Nxe6 fxe6 c3 Rxf1+ Qxf1 Rf8 Qe1 c5 Bb3 c4 Bc2 Ne4
>>
>>
>>i would like hear your opinion before i present you another interesting
>>situation out of the nice tournament we had here in berlin.
>
>
>I am going to look at it and to see if Nxe6 is losing
>
>I remember that I analyzed it after 19.Bb3 Rxf1+ and Deep Fritz
>"started to cry" and saw -1.xx in a few minutes.
>
>I am not sure if Nxe6 is the losing error and I need to analyze move 19 of white
>and to see if programs can see a losing evaluation for other moves that are not
>19.Bb3
>
>Junior7 has no problem to understand that Nxe6 is not better for white.
>Here is some analysis on p200 at playing conditions and it seems that Junior7
>can avoid Nxe6 at tournament time control on good hardware
>
>Junior 7 - ,M
>r4rk1/ppp2ppp/1b1nb3/4q3/B2N4/4P2P/PPPP2P1/R1BQ1RK1 w - - 0 1
>
>Analysis by Junior 7:
>
>18.a3 Bxd4 19.exd4
> ³ (-0.31) Depth: 3 00:00:00
>18.b4 Bxd4 19.exd4
> ³ (-0.29) Depth: 3 00:00:00
>18.c3 Bxd4 19.cxd4
> = (-0.05) Depth: 3 00:00:00
>18.Nxe6 fxe6 19.Qg4 Rxf1+
> ² (0.49) Depth: 3 00:00:00
>18.Nxe6 fxe6 19.Rxf8+ Rxf8 20.Qg4 Rf5
> ² (0.39) Depth: 6 00:00:00 2kN
>18.Nxe6 fxe6 19.Bb3 Rxf1+ 20.Qxf1 Rf8 21.Qd3 Ne4
> = (0.24) Depth: 9 00:00:01 77kN
>18.Nxe6 fxe6 19.Bb3 Rxf1+ 20.Qxf1 Rf8 21.Qd3 Qf6 22.Kh2 Qe5+ 23.Kh1 Rf2
> = (-0.12) Depth: 12 00:00:08 880kN
>18.Nxe6 fxe6 19.Bb3 c5 20.Rxf8+ Rxf8 21.Qg4 c4 22.Bxc4 Nxc4 23.Qxc4 Qf5 24.d4
> = (0.03) Depth: 15 00:01:08 8207kN
>18.Nxe6 fxe6 19.Bb3 Rxf1+ 20.Qxf1 Rf8 21.Qe2 c6 22.Qd3 Bc7 23.a4 Ne4
> = (-0.14) Depth: 17 00:07:33 51146kN
>18.Ne2 Rfd8 19.d4 Qg5 20.e4 Qe5 21.c3 Nxe4 22.Bf4 Qd5 23.Bc2 h6 24.Qd3
> = (-0.08) Depth: 17 00:23:08 162337kN
>
>Uri
Zarkov4.5T - Gambit-Tiger14.6
[D]r4rk1/ppp3pp/1b1np3/4q3/B7/4P2P/PPPP2P1/R1BQ1RK1 w - - 0 1
Analysis by Deep Fritz:
19.Rxf8+--
= (0.19) Depth: 1/3 00:00:00
19.Rxf8+--
= (0.19) Depth: 1/3 00:00:00
19.d4!
= (0.25) Depth: 1/4 00:00:00
19.d4!
± (0.94) Depth: 1/4 00:00:00
19.d4 Qg3
± (0.84) Depth: 2/10 00:00:00
19.d4--
² (0.53) Depth: 3/8 00:00:00
19.d4--
² (0.53) Depth: 3/10 00:00:00
19.d4 Rxf1+ 20.Kxf1 Rf8+ 21.Kg1
² (0.47) Depth: 4/10 00:00:00 1kN
19.Rxf8+!
² (0.50) Depth: 4/10 00:00:00 2kN
19.Rxf8+ Rxf8 20.d4 Qf5 21.Qe2 Ne4
² (0.47) Depth: 5/12 00:00:00 3kN
19.Rxf8+ Rxf8 20.d4 Qf5 21.Qe2 Ne4
² (0.47) Depth: 5/12 00:00:00 3kN
19.Rxf8+ Rxf8 20.d4 Qg3 21.Bd7 e5 22.Be6+ Kh8
² (0.53) Depth: 6/18 00:00:00 18kN
19.Rxf8+ Rxf8 20.d4 Qg3 21.Bd7 e5 22.Be6+ Kh8 23.Qd2
² (0.53) Depth: 7/19 00:00:00 36kN
19.Rxf8+ Rxf8 20.Bb3 Qf5 21.Qe2 a6 22.d4 Ne4 23.Bd2
² (0.56) Depth: 8/24 00:00:00 154kN
19.Rxf8+ Rxf8 20.Bb3 Qf5 21.Qe2 Qg6 22.d3 Nf5 23.Bc4 Bc5
² (0.50) Depth: 9/25 00:00:00 278kN
19.Rxf8+ Rxf8 20.d4 Qg3 21.Bb3 Rf6 22.Qe2 Ne4 23.Bc4 c6 24.Bd2
² (0.44) Depth: 10/26 00:00:02 1423kN
19.Rxf8+ Rxf8 20.c3 Ne4 21.Bb3 Qf5 22.Qe2 Qg6 23.Qc4 Ng5 24.Qg4 Bc5
² (0.28) Depth: 11/30 00:00:07 4163kN
19.Bb3!
² (0.31) Depth: 11/30 00:00:10 5778kN
19.Bb3 c5 20.c3 c4 21.Bc2 Ne4 22.d4 cxd3 23.Bxd3 Rxf1+ 24.Qxf1 Rf8
² (0.28) Depth: 12/35 00:00:16 9003kN
19.Bb3 c5 20.Qg4 Rxf1+ 21.Kxf1 Rf8+ 22.Ke2 Rf6 23.d3 c4 24.Bxc4 Nf5
= (0.25) Depth: 13/34 00:00:32 18865kN
19.Bb3--
= (-0.06) Depth: 14/36 00:00:59 34248kN
19.Bb3-- c5 20.Qg4 Rxf1+ 21.Kxf1 Rf8+ 22.Ke2 Rf6 23.Kd1 Rf1+ 24.Ke2 Rf6
= (0.00) Depth: 14/38 00:01:14 43572kN
19.c3!
= (-0.12) Depth: 14/38 00:02:25 85433kN
19.c3! Rxf1+ 20.Qxf1 Rf8 21.Qe1 c5 22.d3 Nf5 23.Bd1 Bc7 24.Bf3 Qh2+
= (-0.06) Depth: 14/38 00:03:17 116309kN
19.c3 Rxf1+ 20.Qxf1 Rf8 21.Qe1 c5 22.Qh4 Qf5 23.Qe1 Qe5 24.Qh4 Qf5
= (0.00) Depth: 15/37 00:04:35 162433kN
(Blass, Tel-aviv 05.10.2001)
I think that 19.c3 is better than 19.Bb3
Here is Deep Fritz's analysis after 19.c3
The main line is 19.c3 Rxf1+ 20.Qxf1 Rf8 21.Qe1 c5 and Deep Fritz cannot see a
big advantage for black when it analyzes black's moves
Zarkov4.5T - Gambit-Tiger14.6
[D]r4rk1/ppp3pp/1b1np3/4q3/B7/2P1P2P/PP1P2P1/R1BQ1RK1 b - - 0 1
Analysis by Deep Fritz:
19...Rxf1+!
² (0.41) Depth: 1/3 00:00:00
19...Rad8!
= (0.19) Depth: 1/5 00:00:00
19...Rad8--
± (0.81) Depth: 2/5 00:00:00
19...Rad8--
± (0.81) Depth: 2/5 00:00:00
19...c6!
± (0.72) Depth: 2/6 00:00:00
19...Ne4!
² (0.69) Depth: 2/6 00:00:00
19...Nc4!
² (0.66) Depth: 2/9 00:00:00
19...Nc4! 20.Bd7
² (0.37) Depth: 2/11 00:00:00
19...Rxf1+!
² (0.34) Depth: 2/11 00:00:00
19...Rxf1+! 20.Qxf1 Rf8
= (0.09) Depth: 2/11 00:00:00
19...Rxf1+ 20.Qxf1 Rf8 21.Qd3
= (0.00) Depth: 3/6 00:00:00
19...Rxf1+ 20.Qxf1 Rf8 21.Qd3 c6
= (0.03) Depth: 4/7 00:00:00 1kN
19...Rxf1+ 20.Qxf1 Rf8 21.Qd3 Qg3 22.Bc2
= (0.12) Depth: 5/12 00:00:00 2kN
19...Rxf1+ 20.Qxf1 Rf8 21.Qd3 Qg3 22.Bc2 Qf2+ 23.Kh2
= (0.12) Depth: 6/14 00:00:00 10kN
19...Rxf1+--
² (0.44) Depth: 7/17 00:00:00 41kN
19...Rxf1+--
² (0.44) Depth: 7/17 00:00:00 47kN
19...Rxf1+ 20.Qxf1 Rf8 21.Qe2 Ne4 22.d4 Qg3 23.Bb3 Rf6
² (0.41) Depth: 8/19 00:00:00 125kN
19...Rxf1+ 20.Qxf1 Rf8 21.Qe2 Ne4 22.d4 Qg3 23.Bb3 Rf6 24.Qh5
² (0.50) Depth: 9/23 00:00:00 346kN
19...c5!
² (0.47) Depth: 9/24 00:00:01 891kN
19...c5 20.Bc2 c4 21.Qe2 Rxf1+ 22.Qxf1 g6 23.d4 cxd3 24.Qxd3 Rd8
² (0.44) Depth: 10/27 00:00:03 1999kN
19...Rxf1+!
² (0.41) Depth: 10/27 00:00:04 2182kN
19...Rxf1+! 20.Qxf1 Rf8 21.Qe2 Ne4 22.d4 Qg3 23.Bb3 Rf2 24.Bxe6+ Kh8 25.Qg4
² (0.34) Depth: 10/27 00:00:04 2330kN
19...Rxf1+ 20.Qxf1 Rf8 21.Qe1 c5 22.Bc2 c4 23.b3 Ne4 24.Ba3 Rd8 25.Bxe4
² (0.34) Depth: 11/26 00:00:06 3861kN
19...Rxf1+ 20.Qxf1 Rf8 21.Qe1 c5 22.Bc2 Nf5 23.Qf2 g6 24.Qf4 Qxf4 25.exf4
= (0.25) Depth: 12/31 00:00:14 8216kN
19...Rxf1+ 20.Qxf1 Rf8 21.Qd1
= (0.00) Depth: 13/36 00:00:33 19204kN
19...Rxf1+ 20.Qxf1 Rf8 21.Qe1 c5 22.Qh4 Ne4 23.d4 cxd4 24.cxd4 Bxd4 25.Bc2
= (0.06) Depth: 14/38 00:01:01 36602kN
19...Rxf1+ 20.Qxf1 Rf8 21.Qe1 c5 22.Qh4 Ne4 23.d4 cxd4 24.cxd4 Bxd4 25.Bc2
= (0.06) Depth: 15/37 00:02:25 86964kN
19...Rxf1+ 20.Qxf1 Rf8 21.Qe1 c5 22.Qh4 Ne4 23.d4 cxd4 24.cxd4 Qa5 25.Bc2
= (-0.03) Depth: 16/40 00:06:01 218014kN
(Blass, Tel-aviv 05.10.2001)
Zarkov4.5T - Gambit-Tiger14.6
r5k1/ppp3pp/1b1np3/4q3/B7/2P1P2P/PP1P2P1/R1B2QK1 b - - 0 1
Analysis by Deep Fritz:
20...Qxe3+--
+- (6.09) Depth: 1/3 00:00:00
20...Qxe3+-- 21.dxe3
+- (8.81) Depth: 1/3 00:00:00
20...Bxe3+!
+- (5.28) Depth: 1/3 00:00:00
20...Bxe3+! 21.dxe3
+- (2.84) Depth: 1/3 00:00:00
20...Rf8!
± (0.97) Depth: 1/3 00:00:00
20...Rf8!
= (0.09) Depth: 1/3 00:00:00
20...Rf8 21.Qd3
= (0.00) Depth: 2/4 00:00:00
20...Rf8 21.Qd3 c6
= (0.03) Depth: 3/5 00:00:00
20...Rf8 21.Qd3 Qg3 22.Bc2
= (0.12) Depth: 4/8 00:00:00
20...Rf8 21.Qd3 Qg3 22.Bc2 Qf2+ 23.Kh2
= (0.12) Depth: 5/12 00:00:00 2kN
20...Rf8--
² (0.44) Depth: 6/15 00:00:00 10kN
20...Rf8--
² (0.44) Depth: 6/15 00:00:00 15kN
20...Rf8 21.Qe2 Ne4 22.d4 Qg3 23.Bb3 Rf6
² (0.41) Depth: 7/16 00:00:00 41kN
20...Rf8 21.Qe2 Ne4 22.d4 Qg3 23.Bb3 Rf6 24.Qh5
² (0.50) Depth: 8/19 00:00:00 113kN
20...Rf8 21.Qe1 c5 22.Bc2 Nf5 23.g4 Nd6 24.d4 Qf6
² (0.41) Depth: 9/22 00:00:00 430kN
20...Rf8 21.Qe1 c5 22.Bc2 c4 23.b3 Ne4 24.Ba3 Rd8 25.Bxe4 Qxe4 26.bxc4
² (0.34) Depth: 10/24 00:00:01 974kN
20...Rf8 21.Qd1 Ne4 22.Bb3 Qf5 23.Qe2 Qg6 24.Qc4 Ng5 25.Qg4 Bc5
² (0.28) Depth: 11/25 00:00:04 2584kN
20...Rf8 21.Qd1 Ne4 22.Bb3 Qg3 23.Bxe6+ Kh8 24.Bg4 Qf2+ 25.Kh2 Qg3+ 26.Kg1
= (0.00) Depth: 12/31 00:00:10 5759kN
20...Rf8 21.Qe1 c5 22.Qh4 Qf5 23.Qe1 c4 24.b3 Bc7 25.bxc4 Nxc4 26.d4
= (0.06) Depth: 13/36 00:00:31 17685kN
20...Rf8 21.Qe1 c5 22.Qh4 Qf5 23.Qe1 c4 24.b3 Bc5 25.bxc4 Qd3 26.Bd7
= (0.03) Depth: 14/34 00:00:52 30239kN
20...Rf8 21.Qe1 c5 22.Qh4 Ne4 23.d4 cxd4 24.cxd4 Qa5 25.Bc2 Bd8 26.Bd2
= (-0.03) Depth: 15/39 00:01:54 67561kN
20...Rf8 21.Qe1 c5 22.Qh4 Ne4 23.d4 cxd4 24.cxd4 Qa5 25.Bc2 Bd8 26.Bd2
= (-0.13) Depth: 16/39 00:04:32 161666kN
(Blass, Tel-aviv 05.10.2001)
Zarkov4.5T - Gambit-Tiger14.6
5rk1/ppp3pp/1b1np3/4q3/B7/2P1P2P/PP1P2P1/R1B1Q1K1 b - - 0 1
Analysis by Deep Fritz:
21...Qxe3+--
+- (5.72) Depth: 1/3 00:00:00
21...Qxe3+-- 22.dxe3
+- (8.44) Depth: 1/4 00:00:00
21...Bxe3+!
+- (4.91) Depth: 1/4 00:00:00
21...Bxe3+! 22.Qxe3
+- (2.62) Depth: 1/5 00:00:00
21...c6!
+- (2.53) Depth: 1/5 00:00:00
21...c6!
= (-0.09) Depth: 1/5 00:00:00
21...c6--
² (0.44) Depth: 2/4 00:00:00
21...c6--
² (0.44) Depth: 2/4 00:00:00
21...Ne4!
² (0.41) Depth: 2/4 00:00:00
21...Ne4! 22.d4
² (0.37) Depth: 2/4 00:00:00
21...Qa5!
² (0.34) Depth: 2/5 00:00:00
21...Qa5 22.Qh4 c6
= (0.22) Depth: 3/8 00:00:00
21...Qa5--
² (0.53) Depth: 4/9 00:00:00 2kN
21...Qa5-- 22.Bb3 Qf5 23.d4
± (0.72) Depth: 4/9 00:00:00 2kN
21...Ne4!
² (0.69) Depth: 4/11 00:00:00 2kN
21...Ne4! 22.d3 Qa5 23.Bd7
² (0.47) Depth: 4/12 00:00:00 2kN
21...Qf6!
² (0.44) Depth: 4/12 00:00:00 3kN
21...Qf6 22.d4 c6 23.Bc2 Bc7
² (0.50) Depth: 5/12 00:00:00 6kN
21...c6!
² (0.47) Depth: 5/14 00:00:00 7kN
21...c6! 22.d4 Qe4 23.Bb3
² (0.37) Depth: 5/14 00:00:00 8kN
21...c6 22.d4 Qe4 23.Bb3 Bc7 24.Qe2
² (0.37) Depth: 6/15 00:00:00 15kN
21...c6 22.Bc2 Ne4 23.d4 Qf5 24.b4 Bc7
² (0.47) Depth: 7/20 00:00:00 47kN
21...Qe4!
² (0.44) Depth: 7/20 00:00:00 69kN
21...c5!
² (0.41) Depth: 7/20 00:00:00 114kN
21...c5! 22.Bc2 c4 23.d4 cxd3 24.Bxd3
² (0.28) Depth: 7/21 00:00:00 149kN
21...c5 22.Bc2 c4 23.b3 Ne4 24.Ba3 Rd8 25.Bxe4 Qxe4 26.bxc4
² (0.34) Depth: 8/21 00:00:00 237kN
21...c5 22.Bc2 Nf5 23.Qf2 g6 24.Qf4 Qxf4 25.exf4 c4+ 26.Kh2 Kf7
= (0.25) Depth: 9/22 00:00:00 454kN
21...c5!
= (-0.06) Depth: 10/25 00:00:02 1382kN
21...c5 22.Qh4 Ne4 23.d4 cxd4 24.cxd4 Bxd4 25.Bc2 Rc8 26.Bxe4 Rxc1+ 27.Rxc1
= (0.06) Depth: 11/28 00:00:07 4419kN
21...c5 22.Qh4 Qf5 23.Qe1 c4 24.b3 Bc5 25.bxc4 Qd3 26.Bd7 Rf6 27.Qg3
= (0.03) Depth: 12/29 00:00:18 10819kN
21...c5 22.Qh4 Ne4 23.d4 cxd4 24.cxd4 Qa5 25.Bc2 Bd8 26.Bd2 Nxd2 27.Qxh7+
= (-0.03) Depth: 13/35 00:00:44 26179kN
21...c5 22.Qh4 Ne4 23.d4 cxd4 24.cxd4 Qa5 25.Bc2 Bd8 26.Bd2 Nxd2 27.Qxh7+
= (-0.13) Depth: 14/37 00:01:35 57526kN
21...c5 22.Qh4 g5 23.Qg4 Ne4 24.d4 Qf6 25.Qe2 cxd4 26.Bc2 dxe3 27.Bxe3
= (-0.13) Depth: 15/41 00:05:04 186195kN
(Blass, Tel-aviv 05.10.2001)
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