Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Dortmund Position - Naiditsch's 26.Bxa6

Author: Eelco de Groot

Date: 15:44:58 07/17/05

Go up one level in this thread


On July 17, 2005 at 15:51:36, Gerd Isenberg wrote:

>Congrats to Arkadij Naiditsch!
>
>Dortmund Theatre was a great pleasure.
>Ten top GMs on the stage. Very good and very exciting chess.
>For instance Sutovsky win over Kramnik was very impressive.
>
>As usual nice comments and tales by Helmut Pfleger and Klaus Bischoff via
>infrared headphones to the audience. Also some interesting guest commentators
>and interviews. Adams-Hydra was theme several times with the conclusion that
>Hydra is currently strongest chess entity in the world.
>
>This position occured last week, maybe Arkadij's key game against Leko
>- very impressed by 26.Bxa6.
>
>Cheers,
>Gerd
>
>
>Naiditsch - Leko, Dortmund (3), 10.07.2005
>
>[D] 6k1/1pqr1pbp/p1np2p1/3Q4/3P1B1P/2P5/P4PP1/1R3BK1 w - - ; bm Bxa6


Kramnik is still not in form, scoring only 50 %. Van Wely was also in bad form
lately and lost a lot of ratingpoints on the Fidelist. This tournament will have
been a morale boost I think. A surprising winner! These GMs keep getting younger
and younger!
I hope Naiditsch gets invited to some more tournaments.

The combination is not very hard, even I can see how it works! But you have to
find it at the board of course..

As a testposition this is not so difficult for a chessprogram; some
computer-results:

Pro Deo 1.1 Master.eng default values, Athlon 3200+, 5.7 seconds

00:00:00.4	0,77	3	2071		Bd3 Ne7 Qb3
00:00:00.4	0,54	4	3979		Bd3 Ne7 Qb3 b5
00:00:00.4	0,66	5	21991		Bd3 b5 Be4 Nd8
00:00:00.5	0,58	6	56517		Bd3 Ne7 Qb3 Bf6 h5 b5 hxg6
00:00:00.5	0,66	6	73086		Re1 Ne7 Qb3 b5 Bd3 Kh8
00:00:00.6	0,72	7	186963		Re1 Ne7 Qc4 Qxc4 Bxc4 Bf6 g3 b5
00:00:00.7	0,66	8	282045		Re1 Ne7 Qb3 b5 Be2 Bf6 Bg4
00:00:00.9	0,65	9	550812		Re1 Ne7 Qb3 b5 g3 Rd8 Bg2
00:00:01.7	0,61	10	1358483		Re1 Ne7 Qb3 b5 Bd3 Rd8 c4 Bxd4 cxb5 Rb8
00:00:02.4	0,64	10	2131857		g3 Ne7 Qe4 b5 Qa8+ Qc8 Qxc8+ Nxc8 Re1 Kf8 Bg2 Re7
Rxe7
00:00:03.5	0,54	11	3236595		g3 Ne7 Qf3 b5 Qa8+ Qc8 Qxc8+ Nxc8 Re1 Kf8 Bh3 f5 Bg2
Re7 Rxe7
00:00:04.0	0,62	11	3808531		Re1 Ne7 Qb3 b5 Bd3 Rd8 Bg5 Rd7 Qa3 Kf8 Qxa6 Qxc3
00:00:05.7	0,62	11	5757119		Bxa6
00:00:09.4	1,57	11	9921608		Bxa6 Nb4 Qxb7 Qxb7 Bxb7 Nxa2 Rb3 Rc7 Bxd6 Rc4
00:00:14.9	1,66	12	16459142	Bxa6 Na5 Bg5 h6 Bb5 Nc6 Bf4 Ne7 Qb3 Rd8 Re1
00:00:21.1	1,56	13	23966720	Bxa6 Na5 Bg5 h6 Bb5 Nc6 Bf4 Ne7 Qe4 Rd8 Re1 Bf6 Bxh6
00:00:24.7	1,56	14	29519304	Bxa6 Na5 Bg5 h6 Bb5 Nc6 Bf4 Ne7 Qe4 Rd8 Re1 Bf6 Bxh6
00:00:44.5	1,63	15	54727585	Bxa6 Na5 Bg5 h6 Bb5 Nc6 Bf4 Ne7 Qb3 Rd8 Bf1 Rb8 Bc4
00:01:32.1	1,62	16	115090015	Bxa6 Na5 Bg5 h6 Bb5 Nc6 Bf4 Ne7 Qb3 Nc6 Qa3 Rd8 Bd3
00:04:02.5	1,67	17	317534433	Bxa6 Na5 Bb5 Re7 Bxd6 Qd8

Pro Deo 1.1 Vulcan {9k9i} thinks 26.Bxa6 bxa6 is the right continuation:

00:00:00.2	0,92	4	6470	Re1 Ne7 Qc4 Qa5
00:00:00.3	0,99	4	9771	Be2 b5 Bg4 Ne7 Qa8+
00:00:00.3	0,77	5	20077	Be2 Ne7 Qf3 f5 Qg3
00:00:00.3	0,89	5	22388	Re1 Ne7 Qc4 Qxc4 Bxc4 Rc7
00:00:00.3	0,93	6	44889	Re1 Ne7 Qb3 Bf6 Bc4 Bxh4 Bxf7+
00:00:00.3	1,00	6	71861	Bc4 Na5 Be2 Bf6 Bg4
00:00:00.4	0,79	7	121062	Bc4 Na5 Be2 Bf6 h5 b5 hxg6 hxg6
00:00:00.4	0,89	7	161351	Re1 Re7 Rxe7 Qxe7 Bxd6 Qxh4 g3 Qf6
00:00:00.6	0,89	8	330535	Re1 Ne7 Qb3 b5 Bd3 Bf6 h5 Rd8 hxg6
00:00:00.8	0,79	9	608361	Re1 Ne7 Qb3 b5 Bd3 Rd8 c4 Bxd4 cxb5
00:00:01.9	0,70	10	1664686	Re1 Ne7 Qf3 Rd8 Bg5 Re8 Qe3 Kf8 Qf3
00:00:08.9	0,70	10	8757328	Bxa6
00:00:13.9	1,71	10	14252707	Bxa6 Na5 Be2 Bf6 Rb5 b6 c4 Nc6 Bh5
00:00:16.9	1,66	11	17496543	Bxa6 Na5 Be2 Bf6 h5
00:00:30.2	1,75	12	32269147	Bxa6 bxa6 Qxc6 h5 Qxa6 Bf6 Bg5 Bxg5
00:00:33.7	1,75	13	36772702	Bxa6 bxa6 Qxc6 h5 Qxa6 Bf6 Bg5 Bxg5
00:00:51.5	1,75	14	58154374	Bxa6 bxa6 Qxc6 h5 Qxa6 Bf6 Bg5 Bxg5
00:01:31.1	1,70	15	111054180	Bxa6 bxa6 Qxc6 h5 Qxa6 Bf6 Qb5 Bxh4 c4 Bf6
00:11:04.6	1,79	16	816764155	Bxa6 bxa6
00:15:06.8	1,74	17	1142882618	Bxa6 bxa6 Qxc6 h5 d5


This is Pro Deo 1.1 Vulcan {9k9k}, only change is in evaluation of double pawns.
There are no doubled pawns yet on the board but still the eval is surprisingly
lower than from Vulcan {9k9i}.

00:00:00.3	0,99	4	9682	Be2 b5 Bg4 Ne7 Qa8+
00:00:00.3	0,77	5	19985	Be2 Ne7 Qf3 f5 Qg3
00:00:00.3	0,89	5	22296	Re1 Ne7 Qc4 Qxc4 Bxc4 Rc7
00:00:00.3	0,93	6	44910	Re1 Ne7 Qb3 Bf6 Bc4 Bxh4 Bxf7+
00:00:00.3	1,00	6	71871	Bc4 Na5 Be2 Bf6 Bg4
00:00:00.4	0,79	7	121404	Bc4 Na5 Be2 Bf6 h5 b5 hxg6 hxg6
00:00:00.5	0,89	7	161768	Re1 Re7 Rxe7 Qxe7 Bxd6 Qxh4 g3 Qf6
00:00:00.6	0,89	8	330854	Re1 Ne7 Qb3 b5 Bd3 Bf6 h5 Rd8 hxg6
00:00:00.9	0,79	9	609698	Re1 Ne7 Qb3 b5 Bd3 Rd8 c4 Bxd4 cxb5
00:00:02.0	0,70	10	1689580	Re1 Ne7 Qf3 Rd8 Bg5 Re8 Qe3 Kf8 Qf3
00:00:08.2	0,70	10	8180606	Bxa6
00:00:13.2	1,71	10	13644355	Bxa6 Na5 Be2 Bf6 Rb5 b6 c4 Nc6 Bh5
00:00:17.9	1,76	11	18644721	Bxa6 Nb4 Qxb7 Qxb7 Bxb7 Nxa2 Bc6 Rd8 Rb3 d5
00:00:26.9	1,83	12	29002801	Bxa6 Na5 Bg5 h6 Bb5 Nc6 Bf4 Ne7 Qb3 Rd8 Re1
00:00:30.3	1,83	13	33429256	Bxa6 Na5 Bg5 h6 Bb5 Nc6 Qf5 gxf5 Bxc6
00:00:45.6	1,74	14	52776161	Bxa6 bxa6 Qxc6 h5 Qxa6 Bf6 Bg5 Bxg5
00:01:20.7	1,70	15	101159318	Bxa6 bxa6 Qxc6 h5 Qxa6 Bf6 Qb5 Bxh4 c4 Qd8
00:02:38.3	1,66	16	207575738	Bxa6 bxa6 Qxc6 h5 Qxa6
00:08:29.0	1,65	17	664375195	Bxa6 bxa6 Qxc6 h5 Qxa6
00:24:35.7	1,65	18	1904293669	Bxa6 bxa6 Qxc6 h6 Qxa6

Gandalf 6.01 sees it almost instantly and gives the highest eval for Bxa6.

00:00:00.1	0,86	4	5718	Bd3 Ne7 Qb3 Nf5 Bxf5 gxf5
00:00:00.2	0,92	6	31337	Bd3 Ne7 Qb3 Qc6 h5 Nd5
00:00:00.3	0,99	7	112451	Bd3 Ne7 Qb3 Qc6 Re1 Rc7 Bg5
00:00:00.6	0,99	8	273532	Bd3 Nd8 Re1 Ne6 Rxe6 fxe6 Qxe6+ Rf7 Bc4 Bf8 Qxf7+ Qxf7
Bxf7+ Kxf7
00:00:00.7	0,99	8	324063	Bxa6 bxa6
00:00:00.7	1,34	8	359162	Bxa6 bxa6
00:00:00.8	1,69	8	393120	Bxa6 bxa6
00:00:00.9	1,63	8	446242	Bxa6 bxa6 Qxc6 Bf6 Qxa6 Qxc3 d5 Qc7 h5 gxh5 Qa8+ Rd8
00:00:01.3	1,95	9	665124	Bxa6 bxa6 Qxc6 Bf8 Qa8 Qa7 Rb8 Qxa8 Rxa8 d5 Rxa6
00:00:02.8	2,01	10	1492732	Bxa6 bxa6 Qxc6 h5 Qxa6 Qxc3 Rc1 Qxd4 Qc8+ Kh7 Qxd7
Qxf4
00:00:04.4	2,08	11	2397520	Bxa6 bxa6 Qxc6 h5 Qxa6 Bf6 Rb3 Bxh4 c4 Bf6 Qa8+ Rd8
Qd5
00:00:06.1	2,08	12	3457491	Bxa6 bxa6 Qxc6 h5 Qxa6 Bf6 Rb3 Bxh4 a4 Qd8 Rb6 Qe8
Rxd6 Qe1+ Qf1
00:00:09.9	2,08	13	5967993	Bxa6 bxa6 Qxc6 h5 Qxa6 Bf6 Rb3 Bxh4 a4 Qd8 a5 g5 Bh2
g4
00:00:20.7	2,04	14	12781970	Bxa6 bxa6 Qxc6 h5 Rb6 Qxc6 Rxc6 d5 Rxa6 Kh7 Kf1 Rb7
a4 Rb2 Rd6 Rb1+ Ke2 Rb2+ Ke3
00:00:54.6	2,24	15	33349822	Bxa6 bxa6 Qxc6 h5 Rb6 Qxc6 Rxc6 d5 Rxa6 Rb7 Ra5 Rd7
a4 Kf8 Bg5 f6 Bf4
00:01:25.1	2,24	16	53661003	Bxa6 bxa6 Qxc6 h5 Rb6 Qxc6 Rxc6 d5 Rxa6 Kf8 a4 Ke7
a5 Bf6 g3 Rb7 Rb6 Ra7
00:02:37.9	2,11	17	101917058	Bxa6 bxa6 Qxc6 h5 Rb6 Qxc6 Rxc6 d5 Rxa6 Rd8 Ra5 Kf8
a4 Ke7 Bg5+ f6 Bf4 Rd7 Rb5 f5
00:07:38.8	2,14	18	280609216	Bxa6 bxa6 Qxc6 h5 Rb6 Qxc6 Rxc6 d5 Rxa6 Rd8 Ra5 Kf8
a4 Ke7 Bg5+ f6 Bf4 Ke6 Ra7 Rd7 Ra8

Fruit 2.1 gets to 19 ply in no time

00:00:00.0	1,13	1	5	Re1
00:00:00.0	1,33	1	18	Be2
00:00:00.0	1,35	1	19	Bd3
00:00:00.0	1,07	2	246	Bd3 b5
00:00:00.0	1,28	3	857	Bd3 Bf6 h5
00:00:00.0	1,13	4	3201	Bd3 Ne7 Qb3 b5
00:00:00.1	1,17	5	15648	Bd3 b5 Be4 Na5 Qa8+ Qd8 Qxd8+ Rxd8
00:00:00.1	1,33	5	25557	Re1 Rd8 Bd3 b5 h5
00:00:00.1	1,24	6	37203	Re1 Rd8 Bd3 b5 h5 Bf6
00:00:00.2	1,18	7	123436	Re1 Ne7 Qb3 Nf5 Re8+ Bf8 Bd3 Re7 Rxe7 Bxe7 Bxf5 gxf5
00:00:00.3	1,18	8	250240	Re1 Ne7 Qb3 Nf5 Re8+ Bf8 Bd3 Re7 Rxe7 Bxe7 Bxf5 gxf5
00:00:00.9	1,17	9	723697	Re1 Re7 Rxe7 Nxe7 Qxd6 Qxd6 Bxd6 Nd5 c4 Nc3 d5 Nxa2
00:00:01.7	1,17	10	1462879	Re1 Re7 Rxe7 Nxe7 Qxd6 Qxd6 Bxd6 Nd5 c4 Nc3 d5 Nxa2
00:00:04.8	1,79	10	4394384	Bxa6 Nb4 cxb4 bxa6 Re1 Rd8 h5 gxh5 Rc1 Qe7
00:00:05.6	1,81	11	5143323	Bxa6 Nb4 cxb4 bxa6 Re1 Rd8 h5 gxh5 Rc1 Qe7 a4
00:00:09.2	1,92	12	8690094	Bxa6 Nb4 Rxb4 bxa6 h5 Bf6 Rb3 Qd8 c4 Qe8 Rb1 Qe6 Rb8+
Bd8
00:00:15.2	1,96	13	14547679	Bxa6 bxa6 Qxc6 h5 Rb6 Bf8 Rxa6 Qxc6 Rxc6 Ra7 a4 Rxa4
Bxd6 Ra1+ Kh2 Bxd6+ Rxd6 Ra2 Kg3
00:00:28.8	1,97	14	28109551	Bxa6 Nb4 Rxb4 bxa6 Qc6 h6 Rb6 Qxc6 Rxc6 d5 Rxa6 Rb7
Ra5 Rb1+ Kh2 Rb2 Rxd5 Rxa2
00:00:45.0	1,98	15	44272394	Bxa6 Nb4 Rxb4 bxa6 Qc6 h6 Rb6 Qxc6 Rxc6 d5 Rxa6 Rb7
Rd6 Rb1+ Kh2 Rb2 Rd8+ Bf8 Rxd5 Rxa2
00:02:38.0	2,03	16	156791376	Bxa6 bxa6 Qxc6 h5 Rb6 Qxc6 Rxc6 d5 Rxa6 Re7 Rd6
Re1+ Kh2 Re2 Kg3 Rc2 f3 Rxc3 Rd8+ Bf8 Rxd5
00:03:58.5	1,96	17	236034931	Bxa6 bxa6 Qxc6 h5 Rb6 Qxc6 Rxc6 d5 Rxa6 Rd8 Rd6
Rxd6 Bxd6 Bf8 Bc5 Bg7 a4 Bf6 g3 Kg7
00:06:12.4	1,93	18	370515460	Bxa6 bxa6 Qxc6 h5 Rb6 Qxc6 Rxc6 d5 Rxa6 Rb7 Ra8+
Kh7 Ra5 Rb1+ Kh2 Rb2 Kg3 Rc2 Rc5 Bh6 Bxh6 Kxh6 Rxd5 Rxa2
00:11:00.0	1,93	19	656749195	Bxa6 bxa6 Qxc6 h5 Rb6 Qxc6 Rxc6 d5 Rxa6 Rb7 Ra8+
Kh7 Ra5 Rb1+ Kh2 Rb2 f3 Bh6 Bxh6 Kxh6 a4 Rc2 Kg3 Kg7 Rxd5 Rxc3

[Event "It"]
[Site "Dortmund GER"]
[Date "10/7/2005"]
[Round "3"]
[White "Naiditsch,A"]
[Black "Leko,P"]
[Result "1-0"]
[WhiteElo "2612"]
[BlackElo "2763"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. c3 Nf6 6. e5 Nd5 7. d4 cxd4 8. cxd4
O-O 9. Nc3
Nxc3 10. bxc3 d6 11. Re1 Qc7 12. exd6 exd6 13. Bf4 Bf5 14. Qa4 Rfd8 15. Qa3 a6
16. Bf1
Rac8 17. Nd2 Na7 18. Rac1 Nb5 19. Qb3 Na7 20. Ne4 Bxe4 21. Rxe4 Re8 22. Rxe8+
Rxe8 23. Rb1
Re7 24. h4 Nc6 25. Qd5 Rd7 26. Bxa6 Na5 27. Bf1 Bf8 28. g3 Rd8 29. c4 Nc6 30. h5
Bg7 31. Be3
Ra8 32. h6 Bf8 33. Qb5 Ne7 34. Bd3 Ra3 35. Rb3 Rxa2 36. Qxb7 Ra1+ 37. Kg2 Qa5
38. Qb4
Qh5 39. Rb1 Rxb1 40. Bxb1 d5 41. c5 Bxh6 42. Bxh6 Qxh6 43. Qb8+ Qf8 44. Qd6 Qe8
45. Ba2
Nc6 46. Bxd5 Nxd4 47. Bxf7+ Kxf7 48. Qxd4 Qc6+ 49. f3 Ke6 50. g4 Qa6 51. Qe4+
Kf6 52. c6
Qa2+ 53. Kg3 Qa7 54. g5+ Kf7 55. Qd5+ Ke7 56. Qe5+ Kf7 57. Qf6+ Kg8 58. Qe6+ Kf8
59. Qc8+ 1-0


Regards, Eelco



This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.