Author: Slater Wold
Date: 14:08:46 08/18/01
Go up one level in this thread
On August 18, 2001 at 15:18:32, Sune Larsson wrote: > > [D]8/pR4pk/1b6/2p5/N1p5/8/PP1r2PP/6K1 b - - 0 1 > > Ortueta - Sanz, 1934 > > > This position might prove to be a good test. Deep Fritz had some problems > here. Found the correct move after 13:14 with -0.28, then went green > after 35:39 with -2.47. PIII 800 - 64 MB Hash. > > Black wins after 1.-Rxb2! 2.Nxb2 c3 3.Rxb6 c4! 4.Rb4 a5! True Pawn Magic!! > > > Ortueta - Sanz > 8/pR4pk/1b6/2p5/N1p5/8/PP1r2PP/6K1 b - - 0 1 > > Analysis by Deep Fritz: PIII 800 Mhz > > >1...Bd8 2.Rxa7 Bf6 3.Rb7 Bd4+ 4.Kf1 Rf2+ 5.Ke1 Rxg2 6.h3 > = (0.19) Depth: 8/20 00:00:00 67kN >1...Bd8 2.Rxa7 Bf6 3.Kf1 Bxb2 4.Nxb2 Rxb2 5.a4 c3 6.a5 > = (0.22) Depth: 9/20 00:00:00 123kN >1...c3! > = (0.19) Depth: 9/20 00:00:00 149kN >1...c3! 2.bxc3 Rxa2 3.Nxb6 axb6 4.Rxb6 Ra3 5.c4 > = (0.06) Depth: 9/24 00:00:00 161kN >1...c3 2.bxc3 Rxa2 3.Nxb6 axb6 4.Rxb6 Ra3 5.c4 Rc3 6.Kf2 Rxc4 > = (0.06) Depth: 10/26 00:00:00 242kN >1...Bd8! > = (0.03) Depth: 10/27 00:00:01 382kN >1...Bd8 2.h3 Bf6 3.Kf1 Kg6 4.Rxa7 Bxb2 5.Nxb2 Rxb2 6.a4 c3 7.a5 > = (-0.03) Depth: 11/25 00:00:02 1076kN >1...Bd8 2.h3 Bf6 3.Kf1 Kg6 4.a3 Bd4 5.g4 Rh2 6.Rxa7 Bxb2 > = (-0.06) Depth: 12/27 00:00:03 2041kN >1...Bd8 2.h3 Bf6 3.Kf1 Kg6 4.g4 Rh2 5.Rxa7 Bxb2 6.Nxb2 Rxb2 7.a4 > = (-0.03) Depth: 13/28 00:00:07 4281kN >1...Bd8 2.h3 Bf6 3.Kf1 Kg6 4.a3 a6 5.Rb6 Kf5 6.Nxc5 Bxb2 7.Rxa6 > = (-0.06) Depth: 14/31 00:00:13 8712kN >1...Bd8 2.h3 Bf6 3.Kf1 Kg6 4.a3 Bd4 5.g4 Rh2 6.Rxa7 Rxh3 7.Re7 > = (-0.16) Depth: 15/32 00:00:36 23307kN >1...Bd8 2.h3 Bf6 3.Kf1 Kg6 4.g4 Rh2 5.Rxa7 Bxb2 6.Nxb2 Rxb2 7.Ra6+ > = (-0.16) Depth: 16/34 00:01:27 56494kN >1...c3! > = (-0.19) Depth: 16/34 00:01:33 60739kN, tb=4 >1...c3 2.bxc3 Rxa2 3.Nxb6 axb6 4.Rxb6 Ra3 5.c4 Rc3 6.Kf2 Rxc4 7.Re6 > = (-0.19) Depth: 17/37 00:02:08 84446kN, tb=19 >1...c3 2.bxc3 Rxa2 3.Nxb6 axb6 4.Rxb6 Ra3 5.c4 Rc3 6.Kf2 Rxc4 7.Re6 > = (-0.22) Depth: 18/36 00:04:21 173788kN, tb=70 >1...Bd8! > = (-0.25) Depth: 18/37 00:11:10 443095kN, tb=84 >1...Rxb2! > ³ (-0.28) Depth: 18/38 00:13:14 527020kN, tb=84 >1...Rxb2! 2.Nxb2 c3 3.Rxb6 c4 4.Rb4 a5 5.Rb5 c2 6.Kf2 c1Q 7.Ke2 > -+ (-2.47) Depth: 18/38 00:35:39 1415072kN, tb=108 > >(Larsson, KIL 18.08.2001) Tested with all my favorite engines. :) This is the most interesting one. Deep Fritz, however on a LOT more mhz than yours. Mine takes a different route getting there than yours does. (Look at it's FIRST move!) It finds the move in less time (approx 4 minutes less) however, it takes more nodes to do so (about 70k more). However on the same ply, 18/38. Also with less TB hits. Here it is: ,S - Deep Fritz T29c 8/pR4pk/1b6/2p5/N1p5/8/PP1r2PP/6K1 b - - 0 1 Analysis by Deep Fritz T29c: 1...Rxb2-- ± (0.78) Depth: 1/2 00:00:00 1...Rxb2-- 2.Nxb2 +- (4.16) Depth: 1/3 00:00:00 1...c3! +- (3.81) Depth: 1/3 00:00:00 1...c3! 2.bxc3 ² (0.44) Depth: 1/7 00:00:00 1...Rd1+! ² (0.41) Depth: 1/7 00:00:00 1...Rd1+ 2.Kf2 Rd2+ 3.Kf3 ² (0.50) Depth: 2/8 00:00:00 1...c3! ² (0.44) Depth: 2/8 00:00:00 1...c3 2.bxc3 c4+ 3.Nxb6 axb6 4.Rxb6 ² (0.50) Depth: 3/11 00:00:00 1...Rd6! ² (0.47) Depth: 3/11 00:00:00 1...Rd6! 2.Kf2 ² (0.44) Depth: 3/13 00:00:00 1kN 1...Rd6 2.Kf2 Kg6 3.Re7 ² (0.59) Depth: 4/15 00:00:00 1kN 1...c3! ² (0.53) Depth: 4/15 00:00:00 1kN 1...c3! 2.bxc3 c4+ 3.Nxb6 axb6 4.Rxb6 Rxa2 ² (0.50) Depth: 4/15 00:00:00 2kN 1...Kg6! ² (0.47) Depth: 4/15 00:00:00 3kN 1...Kg6! 2.Kf1 c3 3.bxc3 ² (0.37) Depth: 4/15 00:00:00 5kN 1...Kg6 2.Kf1 c3 3.bxc3 Rxa2 4.Nxb6 ² (0.41) Depth: 5/14 00:00:00 9kN 1...Kg6 2.Kf1 c3 3.bxc3 Rxa2 4.Nxb6 axb6 5.Rxb6+ ² (0.41) Depth: 6/14 00:00:00 18kN 1...Bd8! ² (0.37) Depth: 6/18 00:00:00 29kN 1...Bd8! 2.Rxa7 Bf6 3.Rb7 = (0.22) Depth: 6/18 00:00:00 32kN 1...Bd8 2.Rxa7 Bf6 3.Rb7 Bd4+ 4.Kf1 Rf2+ 5.Ke1 Rxg2 = (0.22) Depth: 7/17 00:00:00 44kN 1...Bd8 2.Rxa7 Bf6 3.Rb7 Bd4+ 4.Kf1 Rf2+ 5.Ke1 Rxg2 6.h3 = (0.19) Depth: 8/20 00:00:00 74kN 1...Bd8 2.Rxa7 Bf6 3.Kf1 Bxb2 4.Nxb2 Rxb2 5.a4 c3 6.a5 = (0.22) Depth: 9/20 00:00:00 128kN 1...c3! = (0.19) Depth: 9/20 00:00:00 158kN 1...c3! 2.bxc3 Rxa2 3.Nxb6 axb6 4.Rxb6 Ra3 5.c4 = (0.06) Depth: 9/20 00:00:00 171kN 1...c3 2.bxc3 Rxa2 3.Nxb6 axb6 4.Rxb6 Ra3 5.c4 Rc3 6.Kf2 Rxc4 = (0.06) Depth: 10/20 00:00:00 253kN 1...Bd8! = (0.03) Depth: 10/25 00:00:00 401kN 1...Bd8 2.Kf1 Bf6 3.h3 Kg6 4.Rxa7 Bxb2 5.Nxb2 Rxb2 6.a4 c3 7.a5 = (-0.03) Depth: 11/25 00:00:01 1085kN 1...Bd8 2.Kf1 Bf6 3.h3 Kg6 4.a3 a6 5.Ra7 Bxb2 6.Rxa6+ Kf5 7.g4+ = (-0.16) Depth: 12/27 00:00:02 2973kN 1...Bd8 2.Kf1 Bf6 3.h3 Kg6 4.a3 a6 5.Ra7 Bxb2 6.Rxa6+ Kf5 7.Nxc5 = (-0.06) Depth: 13/27 00:00:04 5075kN 1...Bd8 2.Kf1 Bf6 3.h3 Kg6 4.a3 a6 5.Ra7 Bxb2 6.Rxa6+ Kf5 7.Nxc5 = (-0.09) Depth: 14/27 00:00:09 9588kN 1...Bd8 2.Kf1 Bf6 3.h3 Kg6 4.g3 a6 5.Rb6 Kf5 6.Ke1 Rh2 7.Rxa6 = (-0.13) Depth: 15/30 00:00:21 22245kN 1...Bd8 2.Kf1 Bf6 3.h3 Kg6 4.g4 Rh2 5.Rxa7 Bxb2 6.Nxb2 Rxb2 7.Ra6+ = (-0.16) Depth: 16/33 00:00:55 56202kN 1...Bd8 2.Kf1 Bf6 3.h3 Kg6 4.g4 Rh2 5.Rxa7 Bxb2 6.Nxb2 Rxb2 7.Ra3 = (-0.22) Depth: 17/36 00:02:31 152935kN, tb=4 1...Bd8 2.Kf1 Bf6 3.h3 Bd4 4.g4 Rf2+ 5.Ke1 Rh2 6.Rxa7 Rxh3 7.Kd1 ³ (-0.31) Depth: 18/38 00:09:11 556293kN, tb=50 1...Rxb2! ³ (-0.34) Depth: 18/38 00:09:50 593790kN, tb=63 (, 18.08.2001) On watching the CPU using, DF never took full 100% power of both CPU's. It varied from 73% to 88%. I am not sure if that is caused by bad SMP code, or the fact is was using TB's. As you can see, I average about 1100k nps. I've seen 2000k+ from this engine. Also, I let it run for over 30 minutes, however the analysis window never updated, so I stopped it. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ,S - Shredder 5.32 8/pR4pk/1b6/2p5/N1p5/8/PP1r2PP/6K1 b - - 0 1 Analysis by Shredder 5.32: 1...c3 2.bxc3 Rxa2 3.Nxb6 axb6 4.Rxb6 ² (0.67) Depth: 1/2 00:00:00 1...c3 2.bxc3 Rxa2 3.Nxb6 axb6 4.Rxb6 ² (0.67) Depth: 1/2 00:00:00 1...c3 2.bxc3 Rxa2 3.Nxb6 axb6 4.Rxb6 ² (0.67) Depth: 2/4 00:00:00 1...c3 2.bxc3 Rxa2 3.Nxb6 axb6 4.Rxb6 ² (0.67) Depth: 3/6 00:00:00 1...c3 2.bxc3 Rxa2 3.Nxb6 axb6 4.Rxb6 ² (0.67) Depth: 4/8 00:00:00 1...c3 2.bxc3 Rxa2 3.Nxb6 axb6 4.Rxb6 ² (0.67) Depth: 5/10 00:00:00 1...c3 2.bxc3 Rxa2 3.Nxb6 axb6 4.Rxb6 Rc2 ± (0.75) Depth: 6/12 00:00:00 11kN 1...Kg6 2.Kf1 c3 3.Nxb6 cxb2 4.Na8 Rd1+ 5.Kf2 b1Q 6.Rxb1 Rxb1 ± (0.74) Depth: 6/12 00:00:00 25kN 1...Kg6 2.a3 Rc2 3.Kf1 c3 4.bxc3 ² (0.57) Depth: 6/12 00:00:00 34kN 1...Kg6 2.a3 Rd6 3.Kf2 Kf6 4.Ke3 Re6+ 5.Kf4 ± (0.72) Depth: 7/14 00:00:00 76kN 1...c3 2.bxc3 Rxa2 3.Nxb6 axb6 4.Kf1 Rc2 5.Ke1 ± (0.71) Depth: 7/14 00:00:00 81kN 1...c3 2.bxc3 Rxa2 3.Nxb6 axb6 4.Rxb6 Rc2 5.Rb3 ² (0.57) Depth: 7/14 00:00:00 86kN 1...c3 2.bxc3 Rxa2 3.Nxb6 axb6 4.Rxb6 Rc2 5.Rb3 Kg6 ² (0.51) Depth: 8/16 00:00:00 121kN 1...c3 2.bxc3 Rxa2 3.Nxb6 axb6 4.Rxb6 Ra3 5.c4 Rc3 6.Rb7 Rxc4 ² (0.26) Depth: 9/18 00:00:00 191kN 1...c3 2.bxc3 Rxa2 3.Nxb6 axb6 4.Rxb6 Ra3 5.c4 Rc3 6.Rb7 Rxc4 = (0.22) Depth: 9/18 00:00:00 210kN 1...c3 2.bxc3 Rxa2 3.Nxb6 axb6 4.Rxb6 Ra3 5.c4 Rc3 6.Rb7 Rxc4 = (0.22) Depth: 10/20 00:00:00 273kN 1...c3 2.bxc3 Rxa2 3.Nxb6 axb6 4.Rxb6 Ra3 5.c4 Rc3 6.Kf2 Rxc4 7.Rb7 = (0.23) Depth: 11/22 00:00:00 406kN, tb=13 1...c3 2.bxc3 Rxa2 3.Nxb6 axb6 4.Rxb6 Ra3 5.Kf2 Rxc3 6.Rc6 c4 7.Rc7 Kg6 = (0.02) Depth: 12/24 00:00:01 807kN, tb=15 1...c3 2.bxc3 Rxa2 3.Nxb6 axb6 4.Rxb6 Ra3 5.c4 Rc3 6.Kf2 Rxc4 7.Rc6 Rc2+ 8.Kf3 g6 9.h3 = (-0.05) Depth: 13/25 00:00:01 1261kN, tb=17 1...c3 2.bxc3 Rxa2 3.Nxb6 axb6 4.Rxb6 Ra3 5.Kf2 Rxc3 6.Ke2 Rc2+ 7.Kf3 c4 8.Rc6 c3 = (-0.04) Depth: 14/26 00:00:02 2248kN, tb=25 1...c3 2.bxc3 Rxa2 3.Nxb6 axb6 4.Rxb6 Ra3 5.Kf2 Rxc3 6.h4 = (-0.03) Depth: 15/27 00:00:05 4043kN, tb=80 1...c3 2.bxc3 Rxa2 3.Nxb6 axb6 4.Rxb6 Ra3 5.Kf2 Rxc3 6.h4 = (-0.01) Depth: 16/28 00:00:16 11693kN, tb=633 1...Rxb2 2.Nxb2 c3 3.Rxb6 c4 4.Rb4 a5 5.Nd3 cxd3 6.Rh4+ Kg8 7.g3 c2 8.Kh1 c1Q+ 9.Kg2 = (-0.02) Depth: 16/28 00:00:28 20571kN, tb=985 1...Rxb2 2.Nxb2 c3 3.Rxb6 c4 4.Rb4 a5 5.Nd3 cxd3 6.Rh4+ Kg8 7.Rh3 d2 ³ (-0.37) Depth: 16/28 00:00:30 22253kN, tb=986 1...Rxb2 2.Re7 Rxa2 3.Nc3 Ra3 4.Nd5 c3 5.Re2 Ra1+ 6.Kf2 Rd1 7.Nf4 -+ (-3.03) Depth: 16/28 00:05:35 228565kN, tb=4131 (, 18.08.2001) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ,S - Deep Junior 6.0 8/pR4pk/1b6/2p5/N1p5/8/PP1r2PP/6K1 b - - 0 1 Analysis by Deep Junior 6.0: 1...Kg6 2.Kf1 c3 3.Nxb6 axb6 ² (0.50) Depth: 6 00:00:00 1kN 1...Kg6 2.Kf1 c3 3.bxc3 Rxa2 4.Nxb6 axb6 5.Rxb6+ ² (0.42) Depth: 9 00:00:00 13kN 1...Kg6 2.Kf1 Rc2 3.h4 c3 4.bxc3 Rxa2 5.Nxb6 axb6 ² (0.46) Depth: 12 00:00:00 123kN 1...c3 2.bxc3 Rxa2 3.Nxb6 axb6 4.Rxb6 Ra1+ 5.Kf2 Ra2+ 6.Kf3 Ra3 7.Rb7 Rxc3+ ² (0.43) Depth: 12 00:00:00 156kN 1...c3 2.bxc3 Rxa2 3.Nxb6 axb6 4.Rxb6 Ra3 5.c4 Ra4 6.Kf2 Rxc4 ² (0.27) Depth: 15 00:00:00 1308kN 1...c3! = (-0.03) Depth: 18 00:00:04 7877kN, tb=2 1...c3 2.bxc3 Rxa2 3.Nxb6 axb6 4.Rxb6 Ra3 5.c4 Rc3 6.Kf2 Rxc4 7.Rc6 Rc2+ 8.Kf3 c4 9.g4 c3 10.Rc4 = (-0.15) Depth: 21 00:00:44 74904kN, tb=160 1...c3 2.bxc3 Rxa2 3.Nxb6 axb6 4.Rxb6 Ra3 5.c4 Rc3 6.Kf2 Rxc4 7.Rc6 Rc2+ 8.Ke3 = (-0.12) Depth: 23 00:03:08 310291kN, tb=866 1...c3 2.bxc3 Rxa2 3.Nxb6 axb6 4.Rxb6 Ra3 5.Rc6 Rxc3 6.Kf2 Rc2+ 7.Ke3 Rxg2 8.Rxc5 Ra2 9.h4 Ra4 10.h5 Kh6 = (-0.10) Depth: 24 00:08:38 854299kN, tb=2213 1...Rxb2! ³ (-0.42) Depth: 24 00:13:16 1027229kN, tb=3149 (, 18.08.2001) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ And with no surprise, the fastest, Gambit Tiger 2.0: ,S - Gambit Tiger 2.0 8/pR4pk/1b6/2p5/N1p5/8/PP1r2PP/6K1 b - - 0 1 Analysis by Gambit Tiger 2.0: 1...Bd8 2.Rxa7 Bf6 3.Rb7 Bd4+ 4.Kf1 Rf2+ 5.Ke1 Rxg2 6.h4 Kg6 = (0.10) Depth: 9 00:00:00 161kN 1...Bd8 2.Kf1 Bf6 3.h3 a5 4.Rb5 Bd4 5.Rxa5 Rf2+ 6.Ke1 Rxg2 = (0.08) Depth: 10 00:00:00 316kN 1...Bd8 2.Kf1 Bf6 3.h3 Kg6 4.a3 Bd4 5.g4 Rf2+ 6.Ke1 a5 = (0.02) Depth: 11 00:00:01 531kN 1...Bd8 2.Kf1 Bf6 3.h3 Kg6 4.a3 Bd4 5.g4 Rh2 6.Ke1 a6 7.Rb6+ Kf7 = (-0.08) Depth: 12 00:00:03 1200kN 1...Bd8 2.Kf1 = (-0.08) Depth: 13 00:00:03 1285kN 1...Rxb2 µ (-0.98) Depth: 13 00:00:04 1748kN 1...Rxb2 2.Nxb2 c3 3.Rxb6 c4 4.Rb4 a5 5.Rb5 c2 6.Kf2 c1Q 7.Kf3 Qf1+ 8.Ke3 Qxg2 9.Nxc4 Qxa2 10.Nxa5 -+ (-1.86) Depth: 13 00:00:05 2165kN 1...Rxb2 2.Nxb2 c3 3.Rxb6 c4 4.Rb4 a5 5.Rb5 c2 6.Kf2 c1Q 7.Rh5+ Kg6 8.Rb5 c3 9.Rb6+ Kf5 -+ (-2.16) Depth: 14 00:00:09 3535kN 1...Rxb2 2.Nxb2 c3 3.Rxb6 c4 4.Rb4 a5 5.Rb5 c2 6.Kf2 c1Q 7.Ke2 c3 8.Nc4 Qc2+ 9.Ke3 Qxa2 10.Nxa5 Qxg2 -+ (-2.74) Depth: 15 00:00:19 7327kN, tb=7 (, 18.08.2001) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ All were on a 2xPIV 1.7Ghz. 128MB hash. 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