Author: Brian Katz
Date: 17:39:36 03/29/05
Go up one level in this thread
On March 29, 2005 at 20:16:49, Brian Katz wrote: >On March 29, 2005 at 09:54:47, Eelco de Groot wrote: > >>Hello everybody, I am having some difficulty interpreting this position. Is >>12.Nxe5 the only move? Is White winning regardless? Should I throw away my >>latest settings for Pro Deo? >> >>[D]rnbq1rk1/pp1n1p1p/4p1p1/3pP1NP/1b3P2/1PpB4/P1P3P1/R1BQK2R b KQ - 0 1 >> >> >>I had some slightly conflicting search results in the position I gave in my last >>post http://www.talkchess.com/forums/1/message.html?418597. That only makes it a >>more interesting position I think. >> >>Pro Deo 1.1 Betazoid T6c met [Queen Value = 95] >> >>01:11:50.6 0,00 13 566269012 Nxe5 fxe5 Qc7 Qe2 >>01:30:45.5 0,01 13 721163232 Nc6 hxg6 fxg6 Nxh7 Qe8 Rh6 >> >> > > > >Brian Katz >>Pro Deo 1.1 Betazoid T6e2 >> >>02:29:01.0 0,28 13 1232946950 Nc6 Nxh7 g5 h6 Kh8 Nxf8 Qxf8 >>05:42:39.8 0,39 14 -1368052790 Nc6 Nxh7 g5 Qg4 >> >>S&D 6_7e3 Pro Deo 1.1 surprisingly to the point. I expected many switches not to >>be working anymore. But overall this search seems good, in this postion at >>least. >> >> >>00:00:00.5 1,88 1 26 gxh5 Bxh7+ Kh8 Qxh5 >>00:00:00.5 3,72 1 28 Nc6 >>00:00:00.5 3,80 1 48 Qb6 >>00:00:00.5 2,82 2 163 Qb6 hxg6 hxg6 >>00:00:00.5 2,90 2 242 Bc5 hxg6 hxg6 >>00:00:00.6 3,23 2 820 h6 a3 >>00:00:00.6 3,44 3 1627 h6 Nf3 gxh5 Rxh5 >>00:00:00.6 3,27 4 6174 h6 Nxf7 Kxf7 Qg4 Nxe5 hxg6+ >>00:00:00.8 2,85 5 17265 h6 hxg6 hxg5 g7 Kxg7 a3 >>00:00:00.8 3,26 5 28615 Be7 hxg6 hxg6 Nf3 Nc5 Bb5 >>00:00:01.1 3,31 6 61197 Be7 hxg6 hxg6 Nf3 Nc5 Qe2 Bd7 >>00:00:06.4 2,05 7 729200 Be7 Nxh7 Bh4+ Kf1 Kxh7 hxg6+ Kg7 Qh5 >>00:00:14.8 2,34 8 1808764 Be7 Nxh7 Bh4+ Kf1 Kxh7 hxg6+ Kg7 gxf7 Nxe5 Qh5 Nxd3 >>00:00:18.8 1,57 9 2339553 Be7 Nxh7 Bh4+ Kf1 Kxh7 Qg4 Kg8 Rxh4 g5 >>00:00:57.6 0,98 10 7808043 Be7 Nxh7 Bh4+ Kf1 Kxh7 Qg4 Kg8 Rxh4 g5 Ba3 >>00:04:50.4 0,46 11 40080820 Be7 hxg6 fxg6 Bxg6 Bxg5 Bxh7+ Kg7 Qh5 Qe7 g3 Nc6 >>00:07:36.5 0,71 11 65032803 Nc6 Nxh7 Be7 Kf1 >>00:09:25.8 0,87 11 81944119 Nxe5 fxe5 Qc7 Qe2 f6 exf6 >>00:17:53.7 0,50 12 161369733 Nxe5 fxe5 Qc7 Qg4 >>00:21:28.3 0,58 12 194454123 Nc6 Nxh7 Bc5 Nxf8 Nxf8 hxg6 >>01:07:52.3 0,21 13 616796324 Nc6 hxg6 fxg6 Nxh7 Bc5 Bxg6 >>01:42:37.6 0,32 13 938572412 Bc5 hxg6 fxg6 Nxh7 Rf7 Ng5 >>04:17:13.5 0,06 14 -1940861402 Bc5 hxg6 hxg6 Qg4 >> >>Assuming this is anywhere near correct than 12.Nxe5, 12.Nc6 and 12.Bc5 all have >>chances to draw. If anyone thinks this is wrong, please tell me. >> >>This is Pro Deo 1.1 Betazoid T8: >> >>00:00:06.6 1,83 1 26 gxh5 Bxh7+ Kh8 Qxh5 >>00:00:06.6 3,71 1 28 Nc6 >>00:00:06.6 3,78 1 48 Qb6 >>00:00:06.6 2,76 2 194 Qb6 hxg6 hxg6 >>00:00:06.6 2,86 2 302 Bc5 hxg6 hxg6 >>00:00:06.7 3,14 2 975 h6 a3 >>00:00:06.7 3,35 3 1855 h6 Nf3 gxh5 Rxh5 >>00:00:06.7 3,14 4 7234 h6 Nxf7 Kxf7 Qg4 g5 fxg5 >>00:00:06.8 0,94 5 24379 h6 hxg6 Nxe5 fxe5 hxg5 g7 Kxg7 >>00:00:07.0 1,86 5 40058 Bc5 Nxh7 Nxe5 Nxf8 Nxd3+ Qxd3 >>00:00:07.0 2,30 5 48036 Qb6 hxg6 hxg6 Qe2 Nc6 Be3 >>00:00:07.1 2,34 5 55190 Nc5 hxg6 hxg6 Rh7 Nxd3+ Qxd3 Qxg5 Rg7+ >>00:00:07.2 2,44 5 63386 Nc6 Nxh7 Ncxe5 Nxf8 Nxd3+ Qxd3 >>00:00:07.4 2,98 5 71112 Be7 hxg6 hxg6 Nf3 Qb6 a4 >>00:00:07.9 3,25 6 95267 Be7 hxg6 hxg6 Nf3 Qb6 a3 Nc6 >>00:00:10.2 2,32 7 359126 Be7 Nxh7 Bh4+ Kf1 Kxh7 hxg6+ Kg7 gxf7 Nxe5 Qh5 Nxd3 >>Rxh4 Nxc1 >>00:00:16.2 1,81 8 1014106 Be7 Nxh7 Bh4+ Kf1 Kxh7 hxg6+ Kg7 g3 Nxe5 Rxh4 >>00:00:37.4 1,51 9 3491866 Be7 Nxh7 Bh4+ Kf1 Kxh7 Qg4 Kg8 Rxh4 g5 >>00:02:05.6 0,39 10 14867230 Be7 hxg6 fxg6 Bxg6 Bxg5 Bxh7+ Kg7 Be3 >>00:03:05.6 0,53 10 22904633 Nc6 hxg6 fxg6 Nxh7 Be7 Qg4 Ndxe5 >>00:04:52.5 0,79 10 37974723 Nxe5 fxe5 Qc7 Nxh7 Qxe5+ >>00:12:22.4 0,00 11 98465292 Nxe5 fxe5 Qc7 Nxh7 Qxe5+ >>00:16:05.1 0,39 11 130139504 Nc6 hxg6 fxg6 Nxh7 Qe7 Nxf8 Nxf8 >>00:32:53.6 0,03 12 268802395 Nc6 hxg6 fxg6 Nxh7 Ne7 Qg4 >> >>Mobility at 125, I hope I can get that to work. Also [Pruning = MISC_30] * >>extend singular checks idem. This is responsible for including Nxe5 in the >>search. Maybe this extension description is not valid anymore but it works. So I >>take back the "Grrr" from my last post about 12.Nc6! Just had to report this >>before every programmer starts tuning for a version of their own programs that >>plays 12.Nxe5 only! >> >>Ed Schröders game against Rebel 12: >> >>[Event "Play for fun"] >>[Site "Deventer"] >>[Date "06.11.2004"] >>[Round "?"] >>[White "Ed"] >>[Black "Rebel 12"] >>[Result "1-0"] >>[WhiteElo "?"] >>[BlackElo "?"] >> >>1. d4 Nf6 2. f3 d5 3. Nc3 c6 4. e4 e6 5. e5 Nfd7 6. f4 Bb4 7. Nf3 O-O 8. >>Bd3 c5 9. Ng5 g6 10. h4 cxd4 11. h5 dxc3 12. b3 Qc7 13. Nxh7 Nxe5 14. fxe5 >>Qxe5+ 15. Kf1 Kxh7 16. hxg6+ Kg8 17. g7 Qf6+ 18. Ke1 Qxg7 19. Bh7+ Kh8 >>20. Qh5 f5 21. Bg5 Nc6 22. Bxf5+ Kg8 23. Bh7+ Kh8 24. Be4+ Kg8 25. Bh6 >>Qg3+ 26. Kd1 dxe4 27. Bg5 Qd6+ 28. Kc1 Qd7 29. Bf6 Qd2+ 30. Kb1 Qe1+ 31. >>Rxe1 Rxf6 32. Rh1 Kf8 33. Qh8+ Ke7 34. Rh7+ Rf7 35. a3 Bd6 36. Ka2 e5 37. >>Rah1 Nd8 38. R1h6 Bf5 39. Qf6+ Ke8 40. Rh8+ Bf8 41. Qxe5+ Kd7 42. Rf6 Rxf6 >>43. Qxf6 Be6 44. Qxf8 * >> >>Thanks for any comment >> Eelco Fritz 8 Running on an AMD Athlon XP 2600+ 1 Gig DDR SDRAM wiht Hash Tables set at 512 MB, settles on 1...Nxe5 within 7 seconds. CORRECTION.......Fritz 8 backs away from 1...Nxe5 after longer analysis with the following............ New game, rnbq1rk1/pp1n1p1p/4p1p1/3pP1NP/1b3P2/1PpB4/P1P3P1/R1BQK2R b - - 0 1 Analysis by Fritz 8: 1...Be7-- -+ (-3.13) Depth: 7/22 00:00:00 91kN 1...Be7 2.hxg6 hxg6 3.Qg4 Bxg5 4.Qh3 Bh4+ 5.Qxh4 Qxh4+ 6.Rxh4 -+ (-2.53) Depth: 7/25 00:00:00 130kN 1...Be7-- -+ (-2.25) Depth: 8/26 00:00:00 492kN 1...Be7 2.hxg6 fxg6 3.Nxh7 Rf5 µ (-1.03) Depth: 8/34 00:00:01 1038kN 1...Nc5! µ (-1.06) Depth: 8/34 00:00:01 1076kN 1...Qb6! µ (-1.09) Depth: 8/34 00:00:01 1239kN 1...Na6! µ (-1.13) Depth: 8/34 00:00:01 1439kN 1...f5! µ (-1.16) Depth: 8/34 00:00:01 1535kN 1...f5! µ (-1.31) Depth: 8/34 00:00:01 1554kN 1...Qc7! µ (-1.34) Depth: 8/34 00:00:02 1732kN 1...Qe7! µ (-1.38) Depth: 8/34 00:00:02 2119kN 1...Bc5! -+ (-1.41) Depth: 8/34 00:00:03 2428kN 1...Bc5 2.Nxh7 Re8 3.hxg6 f5 4.g4 Nf6 5.exf6 -+ (-1.47) Depth: 8/34 00:00:03 2446kN 1...Nxe5! -+ (-1.50) Depth: 8/34 00:00:03 2796kN 1...Nxe5 2.fxe5 Qc7 3.Nf3 Nc6 4.a3 Bc5 5.hxg6 hxg6 -+ (-1.63) Depth: 8/34 00:00:03 2865kN 1...Re8! -+ (-1.66) Depth: 8/34 00:00:03 2951kN 1...Re8-- µ (-1.38) Depth: 9/25 00:00:04 3111kN 1...Re8 2.hxg6 fxg6 µ (-1.38) Depth: 9/34 00:00:04 3782kN 1...Nxe5! -+ (-1.41) Depth: 9/34 00:00:04 3849kN 1...Nxe5 2.fxe5 Qc7 3.Qe2 Nc6 4.hxg6 hxg6 5.Nh7 Nxe5 -+ (-1.53) Depth: 9/34 00:00:05 3987kN 1...Nxe5 2.fxe5 Qc7 3.Qe2 f6 4.Nf3 g5 5.exf6 Rxf6 6.a3 Qg3+ 7.Qf2 Qxf2+ 8.Kxf2 -+ (-1.56) Depth: 10/28 00:00:07 5658kN 1...Nxe5 2.fxe5 Qc7 3.Qe2 f6 4.exf6 Rxf6 5.hxg6 hxg6 6.Qg4 Bd6 7.Qh3 Bg3+ 8.Kd1 -+ (-1.63) Depth: 11/34 00:00:12 10102kN 1...Nxe5-- µ (-1.34) Depth: 12/39 00:00:20 17344kN 1...Nxe5 2.fxe5 Qc7 3.Qe2 Nc6 4.Nxh7 Nxe5 5.Nxf8 = (-0.25) Depth: 12/50 00:00:36 31539kN 1...Bc5! ³ (-0.28) Depth: 12/50 00:00:48 41561kN 1...Bc5! ³ (-0.44) Depth: 12/50 00:00:49 43037kN 1...Bc5 2.hxg6 fxg6 3.Nxh7 Qe8 4.Nxf8 Nxf8 5.Qg4 Qf7 6.Qh3 Qg7 7.a3 Nc6 8.Be3 ³ (-0.66) Depth: 12/50 00:00:56 49215kN 1...Qc7! ³ (-0.69) Depth: 12/50 00:01:07 59363kN 1...f5! µ (-0.72) Depth: 12/50 00:01:19 70203kN 1...f5! µ (-0.88) Depth: 12/50 00:01:21 71940kN 1...f5 2.Nxh7 Re8 3.hxg6 Qe7 4.Qh5 Qg7 5.Be3 Nc6 6.a3 d4 7.Bxd4 Nxd4 µ (-1.16) Depth: 12/50 00:01:31 81365kN 1...f5-- µ (-0.88) Depth: 13/38 00:02:03 109678kN 1...f5 2.hxg6 Qe8 µ (-0.88) Depth: 13/50 00:02:13 118760kN 1...f5-- ³ (-0.59) Depth: 14/48 00:03:57 211610kN 1...f5 2.hxg6 hxg6 3.Rh6 Nxe5 4.fxe5 Kg7 5.Rh7+ Kg8 = (0.00) Depth: 14/51 00:04:54 263806kN (Katz, Eatontown 29.03.2005) Brian
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.