Author: Gerd Isenberg
Date: 02:16:39 07/19/05
Go up one level in this thread
On July 17, 2005 at 18:44:58, Eelco de Groot wrote:
>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:
Hi Eelco,
yes, after understanding the backrank trick with the mate pattern with Bh6 it
seems not very hard for humans as well. But as you said, to find it OTB might be
another thing. May be Leko's mistake was 24...Nc6 missing 25.Qd5.
For programs it might be simple - but probably there are some null move issues,
to see that the queen sac works. Depending an some small adjustments my programs
solution time varies from 7 to 20 seconds.
Interestingly the position was also theme in yesterdays (or was it todays?)
telecast in WDR with Pfleger and Hort - of course a nice position for the
audience.
While Kramnik and specially Leko (last round loss againts Topalov after seven
hours in 107 moves!) had a hard time, Van Wely did quite well imho.
I was impressed by his very nice tactical ending against Bacrot in round two.
Cheers,
Gerd
>
>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
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