Author: Robert Hyatt
Date: 18:43:39 10/15/00
Go up one level in this thread
On October 15, 2000 at 02:26:43, Eelco de Groot wrote: One quick note. In Crafty, you used "analysis mode". That has _nothing_ to do with how crafty would play in a real game. Using this mode disables the asymmetric king safety code completely. While playing in a _real_ game, Crafty's king safety would be vastly different... >On October 14, 2000 at 16:15:17, Thorsten Czub wrote: > >>[Event "Open Dutch CC 2000"] >>[Site "Leiden NED"] >>[Date "2000.10.14"] >>[Round "02"] >>[White "Tiger"] >>[Black "Nimzo 8"] >>[Result "1-0"] >>[ECO "D20"] >> >>1.d4 d5 2.c4 dxc4 3.e4 Nf6 4.e5 Nd5 5.Bxc4 Nb6 6.Bb3 Nc6 7.Ne2 Bf5 >>8.Nbc3 e6 9.a3 Qd7 10.O-O Be7 11.Be3 O-O-O 12.Rc1 f6 13.exf6 gxf6 >>14.Na4 Nd5 15.Bc4 Na5 16.Ba2 Bg4 17.Nac3 Nxc3 18.Rxc3 Kb8 19.f3 Bh5 >>20.b4 Nc6 21.b5 Na5 22.Qa4 b6 23.Nf4 Bf7 24.Rfc1 Bd6 25.Nd3 Rhg8 >>26.Nc5 Bxc5 27.dxc5 e5 28.Bxf7 Qxf7 29.cxb6 cxb6 30.Qc2 Qg6 31.Qa2 f5 >>32.Kh1 f4 33.Bg1 h5 34.Qe2 Qf6 35.a4 h4 36.h3 Qg5 37.R1c2 Rd7 >>38.Qe1 Rdg7 39.Qe4 Rd7 40.Qe2 Rgd8 41.Qe1 Qe7 42.Qe4 Qg5 >> >>Here the thing begins ! >>Rc6 is an easy move for Gambit-Tiger. It KNOWS that these kind >>of moves are playable. and it gives the rook to make the bishop >>on g1 active. >>no search-based chess program can see this IMO. >>this is the paradigm-shift. >> >>gambit-tiger believes that this move could make it. >>it is not KNOWING it. it trusts the evaluations and the >>knowledge it has. >> >>thats chris whittingtons way. here you see christophe >>walking in the foot-steps of chris... >> >>leaving the hyatt-paradigm. >> >>is there any chess program playing Rc6 ? >> >>brilliant. i hope more will follow. >>because this steps into a new quality in computerchess. >>the moment when chess programs BELIEVE !!!! instead of knowing. >>or seeing in the tree. >> >> >>43.Rc6 Nxc6 >>44.bxc6 Rc7 45.a5 bxa5 46.Qe2 a4 47.Qb5+ Ka8 48.Qxa4 Qf6 49.Qa5 Qe7 >>50.Re2 Rdc8 51.Rxe5 Qg7 52.Qe1 a6 53.Qe2 Rxc6 54.Re7 Qc3 55.Kh2 Qb4 >>56.Ra7+ Kb8 57.Qe5+ R8c7 58.Qh8+ Rc8 59.Qxh4 Rc1 60.Bf2 R1c6 >>61.Qg5 R8c7 62.Qg8+ Rc8 63.Qg7 R8c7 64.Qh8+ Rc8 65.Qe5+ R8c7 66.h4 Rc2 >>67.Bd4 R2c4 68.Qe8+ Rc8 69.Qe4 R8c6 70.Rd7 a5 71.Be5+ Ka8 72.Rd8+ Ka7 >>73.Qh7+ Ka6 74.Rb8 Rb6 75.Ra8+ Kb5 76.Qd7+ Rcc6 77.Bc7 Qe1 78.Re8 Qxh4+ >>79.Kg1 Qf6 80.Re5+ Kc4 81.Bxb6 Qxe5 82.Qxc6+ Kb3 83.Qe4 Qa1+ >>84.Kf2 Qb2+ 85.Qe2 Qxe2+ 86.Kxe2 a4 87.Kd2 a3 88.Ba5 a2 1-0 >> >>typical for this forum that nobody registers. >> >>i guess the nimzo-team has registered it. >>maybe chrilly himself, when he was in leiden knows about. > > >Q5T would not have played Tiger's courageous exchange sac. With Black it would >have accepted the Rook but not played 45. ..bxa5. After 45. ..b6-b5 it still >thinks Black is a little bit ahead. But I wonder if White can't play 46.a6 then? >And, what line Tiger expected after 45. a5? Should Black have lost the game >after b6-b5? I'm not totally convinced... > >But, true, Gambit Tiger is really a different animal! Its King Safety routines >must be very different from other programs. Crafty would play like Nimzo 45. >..bxa5 seeing a slight plus for Black, half a pawn. If you enter 45. ..b5 or 45. >..bxa5 Crafty is even more pessimistic to almost minus one pawn for White. My >apologies for the bean-counting part of this message! > >Regards, Eelco > >Rebel Engine for ECTool. (c) Ed Schröder > >Engine version : REBEL CENTURY 2 >Rebel personality : "Q5T Experimental" >Opening book file : REBEL.MVS >Hash table size : 28 MB >Analysis mode : Analyzing next move >Refresh interval : 500 ms > >Last Move : 45.a5 (Black to play) > >37:53 16.00 0.12 22..Qd8 23.Rxb4 dxe3 24.fxe3 >00:00 05.01 1.22 45..b5 46.Rc5 a6 47.Rxe5 Qg3 >00:00 06.00 0.80 45..b5 46.Qe2 Rd5 47.Bc5 a6 48.Bb6 >00:00 07.00 0.51 45..b5 46.Qe2 a6 47.Bb6 Rd6 48.Bxc7+ Kxc7 49.g4 Rxc6 >00:01 08.00 0.51 45..b5 46.Qe2 a6 47.Bb6 Rd6 48.Bxc7+ Kxc7 49.g4 Rxc6 >00:03 09.00 0.05 45..b5 46.Qe2 Rd5 47.Bb6 Rd6 48.Bxc7+ Kxc7 49.Rc5+ Rxc6 >50.Qxb5 Rxc5 >00:17 10.00 0.20 45..b5 46.Qb4 Rd5 47.Qb3 Qd8 48.Rc5 Rxc5 49.Bxc5 Rg7 >50.Qxb5+ Ka8 >00:33 11.00 0.05 45..b5 46.Qe2 a6 47.Bb6 Rd6 48.Bxc7+ Kxc7 49.Qe1 Rxc6 50.Rd2 >01:26 12.00 0.23 45..b5 46.Qb4 Rd5 47.Rc5 Rxc5 48.Qxc5 Qf6 49.Qxb5+ >04:03 13.00 0.00 45..b5 46.Qb4 Rd5 47.Rc5 >20:32 14.00 0.31 45..b5 46.Qb4 Rd5 47.Rc5 Rg7 48.Qxb5 Ka8 49.Qb2 Rxc5 >50.Bxc5+ > >middle-game phase > >Crafty v17.11 > > puzzling over a move to ponder. > clearing hash tables > nss depth time score variation (1) >Black(45): bxa5 [pondering] > clearing hash tables > time surplus 0.00 time limit 30.00 (3:00) > nss depth time score variation (1) >Black(45): learn=0 >book learning disabled >result learning disabled >position learning disabled >Black(45): analyze > clearing hash tables > time surplus 0.00 time limit 30.00 (3:00) > nss depth time score variation (1) > 7 1.66 0.93 45. ... bxa5 46. Qa4 Rdc8 47. Qxa5 > Qf6 48. Qb5+ Ka8 49. Rc5 Rxc6 50. Rxe5 > 7-> 2.18 0.93 45. ... bxa5 46. Qa4 Rdc8 47. Qxa5 > Qf6 48. Qb5+ Ka8 49. Rc5 Rxc6 50. Rxe5 > 8 2.97 0.91 45. ... bxa5 46. Qa4 Rdc8 47. Qxa5 > Ka8 48. Qa6 Qg6 49. Rc4 Rxc6 50. Qxa7# > 8-> 3.79 0.91 45. ... bxa5 46. Qa4 Rdc8 47. Qxa5 > Ka8 48. Qa6 Qg6 49. Rc4 Rxc6 50. Qxa7# > 9 8.19 0.91 45. ... bxa5 46. Qa4 Rdc8 47. Qxa5 > Ka8 48. Qa6 Qg6 49. Rc4 Rxc6 50. Qxa7# > 9-> 9.52 0.91 45. ... bxa5 46. Qa4 Rdc8 47. Qxa5 > Ka8 48. Qa6 Qg6 49. Rc4 Rxc6 50. Qxa7# > 10 21.69 0.70 45. ... bxa5 46. Qa4 Rd6 47. Qxa5 Kc8 > 48. Qa6+ Kd8 49. Qa5 Qf6 50. Bxa7 Rxc6 > 10-> 30.25 0.70 45. ... bxa5 46. Qa4 Rd6 47. Qxa5 Kc8 > 48. Qa6+ Kd8 49. Qa5 Qf6 50. Bxa7 Rxc6 > 11 54.42 0.56 45. ... bxa5 46. Qa4 Rd6 47. Qxa5 Kc8 > 48. Qa6+ Kd8 49. Qb5 Qf5 50. Rc5 Qc8 > 51. Qa5 > 11-> 1:19 0.56 45. ... bxa5 46. Qa4 Rd6 47. Qxa5 Kc8 > 48. Qa6+ Kd8 49. Qb5 Qf5 50. Rc5 Qc8 > 51. Qa5 > 12 3:08 0.50 45. ... bxa5 46. Qa4 Ka8 47. Qxa5 Qe7 > 48. Rc1 Rdc8 49. Qa6 Rb8 50. Bc5 Qe6 > 51. Bf2 > 12-> 3:45 0.50 45. ... bxa5 46. Qa4 Ka8 47. Qxa5 Qe7 > 48. Rc1 Rdc8 49. Qa6 Rb8 50. Bc5 Qe6 > 51. Bf2 > 13 7:01 0.61 45. ... bxa5 46. Qa4 Ka8 47. Qxa5 Qe7 > 48. Rc1 Rdc8 49. Qa6 Rb8 50. Rc4 Rb2 > 51. Bc5 Qg5 > 13-> 8:31 0.61 45. ... bxa5 46. Qa4 Ka8 47. Qxa5 Qe7 > 48. Rc1 Rdc8 49. Qa6 Rb8 50. Rc4 Rb2 > 51. Bc5 Qg5 > 14 19:49 0.52 45. ... bxa5 46. Qa4 Ka8 47. Qxa5 Qe7 > 48. Kh2 Rdc8 49. Qa6 Rb8 50. Bf2 Qe6 > 51. Ra2 Rb1 52. Rc2 >Black(44): b5 >Black(45): b5 > clearing hash tables > time surplus 0.00 time limit 30.00 (3:00) > nss depth time score variation (1) > 7 1.61 -1.60 46. a6 Ka8 47. Rb2 Rg8 48. Qc2 Qg6 > 49. Qb3 > 7 1.96 -1.57 46. Qe2 Rd5 47. Bc5 a6 48. Bb6 Rg7 > 49. Kg1 > 7 2.42 -1.21 46. Qb4 Rd5 47. Rc5 Rxc5 48. Qxc5 Qf6 > 49. Qxb5+ Ka8 50. Qc5 Qxc6 51. Qxe5 > 7-> 2.49 -1.21 46. Qb4 Rd5 47. Rc5 Rxc5 48. Qxc5 Qf6 > 49. Qxb5+ Ka8 50. Qc5 Qxc6 51. Qxe5 > 8 2.98 -1.21 46. Qb4 Rd5 47. Rc5 Rxc5 48. Qxc5 Qf6 > 49. Qxb5+ Ka8 50. Qc5 Qxc6 51. Qxe5 > 8-> 4.02 -1.21 46. Qb4 Rd5 47. Rc5 Rxc5 48. Qxc5 Qf6 > 49. Qxb5+ Ka8 50. Qc5 Qxc6 51. Qxe5 > 9 5.38 -0.82 46. Qb4 Rd5 47. Rc5 Rxc5 48. Bxc5 Rxc6 > 49. Qxb5+ Kc7 50. a6 Kd7 51. Bxa7 > 9-> 6.32 -0.82 46. Qb4 Rd5 47. Rc5 Rxc5 48. Bxc5 Rxc6 > 49. Qxb5+ Kc7 50. a6 Kd7 51. Bxa7 > 10 10.10 -0.87 46. Qb4 Rd5 47. Qb3 Qd8 48. Bb6 a6 > 49. Bxc7+ Kxc7 50. Kh2 Qd6 51. Qb2 > 10-> 14.53 -0.87 46. Qb4 Rd5 47. Qb3 Qd8 48. Bb6 a6 > 49. Bxc7+ Kxc7 50. Kh2 Qd6 51. Qb2 > 11 21.60 -0.87 46. Qb4 Rd5 47. Qb3 Qd8 48. Bb6 a6 > 49. Bxc7+ Kxc7 50. Kh2 Qd6 51. Qb2 > Qe6 > 11-> 37.51 -0.87 46. Qb4 Rd5 47. Qb3 Qd8 48. Bb6 a6 > 49. Bxc7+ Kxc7 50. Kh2 Qd6 51. Qb2 > Qe6 > 12 1:08 -0.97 46. Qb4 Rd5 47. Rc5 Rxc5 48. Bxc5 Kc8 > 49. Qxb5 Qg6 50. Qa6+ Kd8 51. Kh2 Rxc6 > 52. Qxa7 Qg3+ 53. Kg1 > 12-> 1:54 -0.97 46. Qb4 Rd5 47. Rc5 Rxc5 48. Bxc5 Kc8 > 49. Qxb5 Qg6 50. Qa6+ Kd8 51. Kh2 Rxc6 > 52. Qxa7 Qg3+ 53. Kg1 > 13 2:48 -0.92 46. Qb4 Rd5 47. Rc5 Rxc5 48. Bxc5 Kc8 > 49. Qxb5 Qg6 50. Qa6+ Kd8 51. Bxa7 > Rxc6 52. Bb6+ Ke8 53. Qe2 Qg5 >White(46): back 1 >middle-game phase > clearing hash tables > time surplus 22:00 time limit 1:00 (6:00) > nss depth time score variation (1) > 7 1.61 0.93 45. ... bxa5 46. Qa4 Rdc8 47. Qxa5 > Qf6 48. Qb5+ Ka8 49. Rc5 Rxc6 50. Rxe5 > 7-> 2.25 0.93 45. ... bxa5 46. Qa4 Rdc8 47. Qxa5 > Qf6 48. Qb5+ Ka8 49. Rc5 Rxc6 50. Rxe5 > 8 3.12 0.91 45. ... bxa5 46. Qa4 Rdc8 47. Qxa5 > Ka8 48. Qa6 Qg6 49. Rc4 Rxc6 50. Qxa7# > 8-> 3.79 0.91 45. ... bxa5 46. Qa4 Rdc8 47. Qxa5 > Ka8 48. Qa6 Qg6 49. Rc4 Rxc6 50. Qxa7# >Black(44): bxa5 >Black(45): bxa5 > clearing hash tables > time surplus 22:00 time limit 1:00 (6:00) > nss depth time score variation (1) > 6 1.66 -1.64 46. Qc4 Qg6 47. Qb5+ Ka8 48. Qxa5 Qxc2 > 49. Qxc7 > 6 2.04 -1.58 46. Rb2+ Ka8 47. Qa4 Rb8 48. Rd2 Rd8 > 49. Rb2 > 6 2.70 -1.21 46. Qa4 Rd6 47. Qxa5 Rdxc6 48. Bxa7+ > Kc8 49. Bc5 > 6-> 2.80 -1.21 46. Qa4 Rd6 47. Qxa5 Rdxc6 48. Bxa7+ > Kc8 49. Bc5 > 7 3.24 -1.37 46. Qa4 Rd6 47. Qxa5 Rdxc6 48. Bxa7+ > Kc8 49. Bc5 e4 > 7-> 3.68 -1.37 46. Qa4 Rd6 47. Qxa5 Rdxc6 48. Bxa7+ > Kc8 49. Bc5 e4 > 8 5.33 -1.30 46. Qa4 Rd6 47. Qxa5 Kc8 48. Qa6+ Kd8 > 49. Qa5 Qf6 50. Bxa7 Rxc6 > 8-> 10.40 -1.30 46. Qa4 Rd6 47. Qxa5 Kc8 48. Qa6+ Kd8 > 49. Qa5 Qf6 50. Bxa7 Rxc6 > 9 14.29 -1.30 46. Qa4 Rd6 47. Qxa5 Kc8 48. Qa6+ Kd8 > 49. Qa5 Qf6 50. Bxa7 Rxc6 > 9-> 32.46 -1.30 46. Qa4 Rd6 47. Qxa5 Kc8 48. Qa6+ Kd8 > 49. Qa5 Qf6 50. Bxa7 Rxc6 > 10 58.69 -0.99 46. Qa4 Qe7 47. Qxa5 Rd1 48. Kh2 Rd6 > 49. Bc5 Rcxc6 50. Bxd6+ Rxd6 51. Qc5 > 10-> 1:21 -0.99 46. Qa4 Qe7 47. Qxa5 Rd1 48. Kh2 Rd6 > 49. Bc5 Rcxc6 50. Bxd6+ Rxd6 51. Qc5 > 11 2:08 -1.03 46. Qa4 Qe7 47. Qxa5 Ka8 48. Rc1 Rdc8 > 49. Qa6 Rb8 50. Bc5 Qe6 51. Bf2 > 11-> 4:55 -1.03 46. Qa4 Qe7 47. Qxa5 Ka8 48. Rc1 Rdc8 > 49. Qa6 Rb8 50. Bc5 Qe6 51. Bf2 > 12 7:53 -1.08 46. Qa4 Ka8 47. Qxa5 Qe7 48. Re2 Rg8 > 49. Bc5 <HT> > 12-> 11:02 -1.08 46. Qa4 Ka8 47. Qxa5 Qe7 48. Re2 Rg8 > 49. Bc5 <HT>
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