Author: Vincent Diepeveen
Date: 16:46:43 05/06/01
Go up one level in this thread
On May 06, 2001 at 02:28:14, Uri Blass wrote: >I gave Deep Fritz to analyze similiar number of nodes to Deeper blue and Deep >Fritz seems to be clearly better in tactics. > >Deep Fritz needs only 191728 knodes to see the line Rf5+ Ke3 >It means only 1 second if I asuume 200,000,000 nodes per second. > >I believe that Rf5+ failed low at depth 17 for Deeper blue for the reason Ke3. >The pv of deeper blue at smaller depthes is Rf5+ Ke2 11 ply for those who are good in math and a bit more real to the world. >Deep Fritz probably does better extensions than Deeper blue because Deep Fritz >see big fail low at depth 16. Fritz hardly has dangerous extensions. Diep has. note i am not extending passers much. Just a bit and only now and then. The Big fail low comes at 12 ply for DIEP. Then it sees Rf5 is losing because of Ke3 though it initially wants to go e3. Then i did a state check to see what the deepest search lines are. You can see it yourself: black timeleft=27:46.40.00 - = - = r = - = Bg2-h3 37 b7-b5 = - = - = - = - Kg1-f2 38 Kf8-g7 - = o = - O O k g3-g4 39 Kg7-h6 = o = r = - = - Rf1-g1 40 h5xg4 o O - = o = R = Bh3xg4 41 Bf3xg4 O - B - = - = - Ne3xg4 42 Ne5xg4 - = O = - K - = Rg1xg4 43 Rd8-d5 = - = - = - = - f5-f6 44 ... white timeleft=27:46.40.00 black to move type 'help' for command overview clean Clearing all Hashtables... anal Analysis mode is on Process 1: engineflags=256 msk=1 process 0: engineflags = 256 denktime=10000000 maxtime=10000000 White can win here 0 worth of material Black can win here 0 worth of material 00:00 0 0 9 (0) 1 -1.20 e4-e3 Kf2-f3 00:00 0 0 11 (0) 1 -0.83 Rd5-d1 00:00 0 0 183 (0) 2 -2.52 Rd5-d1 g6-g7 Kh6-h7 ++ e4-e3 00:00 0 0 199 (0) 2 -1.20 e4-e3 Kf2-f3 00:00 0 0 1828 (279) 3 -2.27 e4-e3 Kf2-e2 Rd5-f5 f6-f7 Rf5-f2 Ke2-d3 ++ d5-f5 00:00 0 0 5187 (535) 3 -1.43 Rd5-f5 Kf2-e1 Rf5-f3 f6-f7 Re8-d8 00:00 0 0 10563 (1709) 4 -2.20 Rd5-f5 Kf2-e1 Re8-g8 g6-g7 Rf5-f3 Ke1-d2 ++ e4-e3 00:01 0 0 43088 (7077) 5 -2.77 Rd5-f5 Kf2-e2 Re8-g8 g6-g7 Rf5-f3 Bc3-e5 Kh6-h7 R g4xe4 Rf3xa3 ++ d5-d8 00:01 0 0 56971 (8004) 5 -2.76 Rd5-d8 f6-f7 Re8-f8 Kf2-e3 Kh6-h5 00:01 0 0 66355 (8454) 6 -2.96 Rd5-d8 f6-f7 Re8-f8 Kf2-e3 Kh6-h5 Rg4-g1 ++ d5-f5 00:02 0 0 110097 (21405) 6 -1.84 Rd5-f5 Kf2-g1 Re8-g8 g6-g7 e4-e3 Rg4-g2 Rf5-f4 Bc3-e5 00:03 0 0 240038 (76577) 7 -2.48 Rd5-f5 Kf2-e1 Re8-g8 g6-g7 Rf5-f3 Bc3-e5 Kh6-h7 Rg4xe4 Rf3xa3 00:09 0 0 769935 (257325) 8 -3.05 Rd5-f5 Kf2-e2 Kh6-h5 f6-f7 Re8-b8 Rg4xe4 Kh5xg 6 Re4-e8 Rf5xf7 Re8xb8 Rf7-e7 Ke2-d3 Re7-d7 Kd3-e4 Rd7-d1 Bc3-d4 00:16 0 0 1339014 (319828) 9 -3.05 Rd5-f5 Kf2-e2 Kh6-h5 f6-f7 Re8-b8 Rg4xe4 Kh5x g6 Re4-e8 Rf5xf7 Re8xb8 Rf7-e7 Ke2-d3 Re7-d7 Kd3-e4 Rd7-d1 Bc3-d4 00:40 0 0 3585770 (1202456) 10 -3.37 Rd5-f5 Kf2-e2 Re8-g8 g6-g7 Kh6-h5 Rg4xe4 Kh 5-g6 Re4-e6 c6-c5 b4xc5 Rf5xc5 Ke2-d3 Rg8-d8 Bc3-d4 Rc5-g5 Kd3-c3 Rg5-g2 ++ h6-h5 00:57 0 0 5247889 (1574084) 10 -3.23 Kh6-h5 f6-f7 Re8-d8 Rg4-g3 Rd5-f5 Kf2-e3 Kh 5-h4 Bc3-e1 Rd8-d5 01:21 0 0 7525618 (1838512) 11 -3.43 Kh6-h5 Kf2-g3 Rd5-f5 f6-f7 Rf5-f3 Kg3-g2 Re 8-d8 g6-g7 Rf3xf7 Kg2-g3 03:22 0 0 19523564 (4145928) 12 -4.58 Kh6-h5 f6-f7 Re8-f8 Kf2-g3 Rd5-d8 Bc3-g7 R f8-g8 f7xg8Q Rd8xg8 Bg7-a1 Rg8xg6 Kg3-f4 ++ d5-f5 04:51 0 0 28566321 (5711262) 12 -4.12 Rd5-f5 Kf2-e3 Rf5-f3 Ke3-e2 Re8-g8 g6-g7 K h6-h7 Bc3-e5 Rf3-f5 Be5-d4 e4-e3 Rg4-g2 Rf5-f4 Ke2xe3 Rf4-f1 Rg2-f2 Now i did state check: State check of all 2 processors: go=true ttl=56708045 abrtd=9682316 q=0 nre=0 rms=-4129 local=1257982 Locks: queue=0 nprctat=0 blocks=0 hash (t,e,p)=0,0,0 root=0 Px dp_rl dp_q dp_mm abort mmlock mnr DBG wfm wfs 0 64 32 63 0 false 11 -1 false true 1 58 32 57 0 false 15 -1 false false Deepest lines seen: d5f5 f2e3 f5f3 e3e2 c6c5 b4c5 f3h3 f6f7 h3h2 e2e3 h2h3 e3f2 e8f8 c3b2 f8d8 g6g7 e4e3 f2g1 e3e2 g7g8 e2e1 g1g2 d8d2 g2h3 e1h1 h3g3 h1h2 g3f3 h2f2 f3e4 f2e1 e4f3 d2f2 f3g3 f2c2 g3f4 c2f2 f4g3 f2f5 g3h2 e1f2 h2h3 f5f3 g4g3 f3g3 g8g3 f2f1 g3g2 f1f5 g2g4 f5f1 h3h4 f1h1 g4h3 h1e4 h3g4 e4e1 g4g3 e1e4 h4h3 e4h1 g3h2 h1h2 d5f5 f2e3 f5f3 e3e2 f3c3 f6f7 e8d8 g6g7 c3c2 e2e1 c2c1 e1f2 d8d2 f2e3 d2d3 e3f4 d3f3 f4e5 c1h1 f7f8 h1h5 e5d6 h5d5 d6c7 d5g5 null g5g4 f8d6 g4g6 d6d2 e4e3 d2h2 f3h3 g7g8 h3h2 g8h8 h6g5 h8e5 g5h4 e5e4 g6g4 e4h7 h4g5 h7g8 g5f6 g8d8 f6g7 d8d7 g7f8 d7d6 f8g7 d6e5 g7f8 e5f5 f8g7 f5g4 g7f8 Current Line: e4e3 f2e2 d5h5 g6g7 h5h2 e2d3 h2h1 null e3e2 c3d2 h6h5 e4e3 f2e2 d5f5 f6f7 f5f2 e2d3 e8e4 f7f8 e4g4 g6g7 g4g7 f8g8 null c3g7 h6g5 g7d4 >Deep fritz also can see another fail low for Rg8 at depth 22 when deeper blue >could get only depth 17 after similiar number of nodes. > >I do not believe that you lose more than 2-3 plies from null move pruning(my >test suggest that you do not lose even 1 ply at small depthes so I guess that >Deep Fritz can search deeper because it is a better software. > > >kasparov - Deeper blue >4r3/8/2p2PPk/1p1r4/pP2p1R1/P1B5/2P2K2/8 b - - 0 1 > >Analysis by Deep Fritz: > >44...e3+-- > = (0.19) Depth: 1/3 00:00:00 >44...e3+-- 45.Ke2 > ± (1.22) Depth: 1/5 00:00:00 >44...Rd1! > ± (1.00) Depth: 1/5 00:00:00 >44...Rd1-- > ± (1.37) Depth: 2/6 00:00:00 >44...Rd1-- > ± (1.37) Depth: 2/6 00:00:00 >44...Red8! > ± (1.28) Depth: 2/7 00:00:00 >44...Rg8! > ± (1.25) Depth: 2/8 00:00:00 >44...Rg8! 45.g7 > ² (0.47) Depth: 2/11 00:00:00 >44...Rg8 45.g7 Rf5+ 46.Ke2 > ± (0.72) Depth: 3/14 00:00:00 >44...Rg8 45.g7 Rf5+ 46.Ke2 Rf3 > ± (0.75) Depth: 4/12 00:00:00 2kN >44...Rg8 45.g7 Rf5+ 46.Ke2 Rf3 47.Bd2+ Kh7 > ± (0.75) Depth: 5/13 00:00:00 6kN >44...Rg8-- > ± (1.06) Depth: 6/14 00:00:00 14kN >44...Rg8-- 45.g7 Rh5 46.Rxe4 Rh2+ 47.Ke3 Rxc2 > +- (1.53) Depth: 6/17 00:00:00 21kN >44...Rf5+! > +- (1.50) Depth: 6/18 00:00:00 37kN >44...e3+! > +- (1.47) Depth: 6/18 00:00:00 45kN >44...e3+! 45.Ke2 Rh5 46.g7 Rh2+ 47.Kd3 Rd8+ 48.Bd4 e2 > ² (0.66) Depth: 6/18 00:00:00 53kN >44...e3+-- > ± (0.97) Depth: 7/20 00:00:00 65kN >44...e3+-- 45.Ke2 Rh5 46.g7 Rh2+ 47.Kd3 Rd8+ 48.Rd4 Rxd4+ 49.Kxd4 Kh7 50.Kxe3 > +- (1.47) Depth: 7/24 00:00:00 86kN >44...Rdd8! > +- (1.44) Depth: 7/24 00:00:00 149kN >44...Rdd8! 45.f7 Rf8 46.Ke3 Kh5 47.Rg3 Rd6 > ± (1.25) Depth: 7/24 00:00:00 157kN >44...Rdd8-- > +- (1.56) Depth: 8/16 00:00:00 199kN >44...Rdd8-- 45.f7 Rf8 46.Ke3 Kh5 47.Rg2 Kh6 48.Kxe4 > +- (2.56) Depth: 8/18 00:00:00 221kN >44...e3+! > +- (2.53) Depth: 8/24 00:00:00 273kN >44...e3+! 45.Ke2 Rf5 46.f7 Rf2+ 47.Kd3 Rd8+ 48.Kxe3 Rxc2 > +- (2.03) Depth: 8/24 00:00:00 335kN >44...Rd7! > +- (2.00) Depth: 8/24 00:00:00 526kN >44...Rd7! 45.g7 e3+ 46.Kf3 Kh7 47.Rh4+ Kg6 48.Re4 Red8 49.Kxe3 > +- (1.94) Depth: 8/24 00:00:00 546kN >44...Red8! > +- (1.91) Depth: 8/24 00:00:01 585kN >44...Red8! 45.g7 Kh7 46.Rxe4 Rh5 47.Kg3 Kg8 48.Re7 > +- (1.87) Depth: 8/24 00:00:01 602kN >44...Rg8! > +- (1.84) Depth: 8/24 00:00:01 673kN >44...Kh5! > +- (1.81) Depth: 8/24 00:00:01 694kN >44...Kh5-- > +- (2.12) Depth: 9/22 00:00:01 805kN >44...Kh5-- 45.f7 Rf8 46.Kg3 Rdd8 47.Bg7 e3 > +- (2.50) Depth: 9/22 00:00:01 890kN >44...Rg8! > +- (2.47) Depth: 9/22 00:00:01 923kN >44...Rg8! 45.g7 Rf5+ 46.Ke2 Kh5 47.Rxe4 Kg6 48.Re6 c5 49.bxc5 Rxc5 > +- (1.91) Depth: 9/22 00:00:01 1008kN >44...Rg8 45.g7 Rf5+ 46.Ke2 Kh5 47.Rxe4 Kg6 48.Re6 c5 49.bxc5 Rxc5 50.Kd3 > +- (2.00) Depth: 10/23 00:00:02 1603kN >44...Kh5! > +- (1.97) Depth: 10/27 00:00:03 2372kN >44...Kh5! 45.f7 Rf8 46.Kg3 Rdd8 47.Bg7 Rg8 48.fxg8Q > +- (1.81) Depth: 10/27 00:00:03 2442kN >44...Kh5 45.f7 Rf8 46.g7 Rxf7+ 47.Ke2 Rd8 48.g8Q Rxg8 49.Rxg8 Rf3 50.Bb2 > +- (1.87) Depth: 11/25 00:00:04 2876kN >44...Kh5-- > +- (2.19) Depth: 12/29 00:00:06 4493kN >44...Kh5-- > +- (2.19) Depth: 12/29 00:00:06 4763kN >44...Rg8! > +- (2.16) Depth: 12/29 00:00:07 5348kN >44...Rg8! 45.g7 Rf5+ 46.Ke3 Rf3+ 47.Ke2 Kh7 48.Bb2 Rf5 49.Ke3 Rf1 50.Rxe4 > +- (2.03) Depth: 12/29 00:00:09 6493kN >44...Rf5+! > +- (2.00) Depth: 12/29 00:00:14 10023kN >44...Rf5+! 45.Ke2 Rg8 46.g7 Kh5 47.Rxe4 Kg6 48.Re6 c5 49.Re4 cxb4 > +- (1.50) Depth: 12/29 00:00:15 10790kN >44...Rf5+ 45.Ke2 Rg8 46.g7 Kh5 47.Rxe4 Kg6 48.Re6 c5 49.Re4 cxb4 50.Rxb4 > +- (1.50) Depth: 13/30 00:00:18 12983kN >44...Rf5+-- > +- (1.81) Depth: 14/35 00:00:27 19404kN >44...Rf5+-- 45.Ke2 Rg8 46.g7 Kh5 47.Rxe4 Kg6 48.Re6 c5 49.bxc5 Rxc5 50.Kd3 > +- (1.84) Depth: 14/35 00:00:50 36597kN >44...Rf5+ 45.Ke2 Rg8 46.g7 Kh5 47.Rxe4 Kg6 48.Re6 c5 49.bxc5 Rxc5 50.Kd3 > +- (1.94) Depth: 15/35 00:01:19 57957kN >44...Rf5+-- > +- (2.25) Depth: 16/37 00:03:15 142651kN >44...Rf5+-- 45.Ke3 Rf3+ 46.Ke2 Rg8 47.Bd2+ Kh5 48.Rg5+ Kh6 49.f7 Rd8 50.g7 > +- (3.06) Depth: 16/37 00:04:21 191728kN >44...Rg8! > +- (3.03) Depth: 16/37 00:04:42 206715kN >44...Rg8! 45.g7 Rf5+ 46.Ke3 Rf3+ 47.Ke2 > +- (2.25) Depth: 16/37 00:06:07 267902kN >44...Rg8 45.g7 Rf5+ 46.Ke3 Rf3+ 47.Ke2 Rf5 48.Bd4 e3 49.Kxe3 > +- (2.50) Depth: 17/38 00:08:43 382453kN >44...Rg8 45.g7 Rf5+ 46.Ke3 Rf3+ 47.Ke2 Rf5 > +- (2.50) Depth: 18/41 00:18:37 809804kN, tb=1 >44...Rg8 45.g7 Rf5+ 46.Ke3 Rf3+ 47.Ke2 Rf5 > +- (2.50) Depth: 19/42 00:33:27 1472226kN, tb=6 >44...Rg8 45.g7 Rf5+ 46.Ke3 Rf3+ 47.Ke2 Rf5 > +- (2.50) Depth: 20/46 01:06:01 2917465kN, tb=52 >44...Rg8 45.g7 Rf5+ 46.Ke3 Rf3+ 47.Ke2 Rf5 > +- (2.50) Depth: 21/47 02:35:13 6867428kN, tb=222 >44...Rg8-- > +- (2.81) Depth: 22/46 04:16:01 11410779kN, tb=435 > >(Blass, Tel-Aviv 06.05.2001) > >Uri
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