Author: Bob Durrett
Date: 08:44:43 01/14/04
Go up one level in this thread
On January 14, 2004 at 03:49:20, Brian Katz wrote: >On January 14, 2004 at 01:52:21, margolies,marc wrote: > >>please check your calendar! >> >>On January 13, 2004 at 23:51:47, Brian Thomas wrote: >> >> >>**** Since Deep Fritz 8 is a year older than it's single processor >>>version, I wonder if there are other improvements other than adding >>>multiprocessor support?***** > >One thing we do know... is that the Deep Version of Fritz 8 has the latest >Engine Upgrade Version 8.0.0.26 as opposed to Upgraded Version 8.0.0.23 and >the CD Version 8.0.0.8, and I believe an earlier Version 8.0.0.5. My guess is that the later engine always has improvements in it, hopefully not introducing new bugs. On the other hand, please recall previous similar threads regarding Junior vs Deep Junior. The issue was that modifying a single processor engine to make it become "deep" might require compromises in the original engine, such as adding "overhead," which would eat up some of the processor time [when running on a single-processor machine]. Bob D. > >As to which version is the Strongest, it is hard to say. Version 8.0.0.23 has >the capturing on e4 problem that so many posters have shown. How this translates >to the actual overall playing strength is a good question. >Many feel that CD version 8.0.0.8 is stronger than the online upgrade version >8.0.0.23. >It is quite possible that the latest Deep-Fritz 8 CD Version 8.0.0.26 is >stronger. > >There are definite differences between versions 8.0.0.8 and 8.0.0.23.....As in a >recent post of mine, where 8.0.0.8 took almost 3 minutes to find 1.Rxe7..., >whereas, 8.0.0.23 took only 8 seconds to find it in the below position: > >[D]3k2r1/r3p2R/4P1b1/2PP1p2/p5p1/8/1B6/4R1K1 w > > >I also ran this position on my AMD Athlon XP 2600+ and found some interesting >>comparisons. Using Fritz Versions 8.0.0.8 and 8.0.0.23 and Crafty 19.08. >>Fritz 8008 took 00:02:59 to find 1.Rxe7... and over 3 min. to evaluate as >>1.03 in favor of white. Whereas, Fritz 8.0.0.23 took only 8 seconds to find >>1.Rxe7... and 00:01:30 to rate the position as +-(1.47). > >I ran this experiment over number of times. Also, closing out the Fritz8 program >>each time, to be sure that there were no evaluations remaining in the >>memory.....As, the first time I ran this when Switching 80023 and 8008 involving >>renaming the engine folders, 8008 found 1.Rxe7...much faster. So, when shutting >>down the program each time, the engines gave the following evaluations: > >>New game >>>Analysis by Fritz 8: Engine Version 8.0.0.8 >> >>1.Rh4 a3 2.Be5 a2 3.Rc1 Ra3 4.Kf2 Rf3+ 5.Ke2 >> ³ (-0.53) Depth: 7/16 00:00:00 36kN >>1.Rh4 a3 2.Be5 a2 3.Rc1 Ra3 4.Kf2 Rf3+ 5.Ke2 >> ³ (-0.53) Depth: 8/18 00:00:00 63kN >>1.Rh4 a3 2.Be5 a2 3.Ra1 Ra4 4.Kf2 Ra3 5.Rh2 Rf3+ >> ³ (-0.50) Depth: 9/21 00:00:00 181kN >>1.Rh4 Ra5 2.Rc1 a3 3.Be5 >> ³ (-0.50) Depth: 10/31 00:00:00 647kN >>1.Rh4 a3 2.Be5 Ra5 3.Ra1 Be8 4.Kf2 a2 5.Bg3 Rxc5 6.Rxa2 Rxd5 >> ³ (-0.44) Depth: 11/25 00:00:02 1906kN >>1.Rh4 Ra5 2.Rc1 a3 3.Be5 Rf8 4.Kf2 a2 5.Rh6 Be8 6.Rh4 Ra4 >> ³ (-0.31) Depth: 12/30 00:00:09 8200kN >>1.Rh4 Ra5 2.Rc1 a3 3.Be5 Be8 4.Rh2 Bb5 5.Ra2 Ra4 6.Rc3 Re4 7.Bg3 >> ³ (-0.31) Depth: 13/34 00:00:17 15719kN >>1.Rh2! >> ³ (-0.28) Depth: 13/34 00:00:27 24765kN >>1.Rh2! >> = (-0.12) Depth: 13/34 00:00:33 29975kN >>1.Be5! >> = (-0.09) Depth: 13/34 00:00:39 36581kN >>1.Be5! >> = (0.06) Depth: 13/34 00:00:44 41016kN >>1.Be5 f4 2.Rf7 f3 3.Rf4 Ra5 4.Rxg4 Rxc5 5.Ra1 f2+ 6.Kxf2 Rf8+ 7.Rf4 Rxf4+ >> ² (0.31) Depth: 14/35 00:01:15 69209kN >>1.Be5! >> ² (0.59) Depth: 15/43 00:02:24 133375kN >>1.Rxe7! >> ² (0.63) Depth: 15/57 00:02:59 168018kN >>1.Rxe7! >> ± (0.78) Depth: 15/57 00:03:02 170697kN >>1.Rxe7 Rxe7 2.Bf6 Rgg7 3.d6 Kc8 4.Bxe7 Rxe7 5.dxe7 Kc7 6.Kg2 Be8 7.Rf1 a3 8.Rxf5 >>Bc6+ >> ± (1.03) Depth: 15/57 00:03:11 178475kN >> >> >>Analysis by Fritz 8: Version 8.0.0.23 >> >>1.Rh4 a3 2.Be5 a2 3.Rc1 Ra3 4.Kg2 Be8 >> ³ (-0.59) Depth: 7/18 00:00:00 35kN >>1.Rh4 a3 2.Be5 a2 3.Rc1 Ra3 4.Kg2 Be8 >> ³ (-0.59) Depth: 8/18 00:00:00 73kN >>1.Rh4 a3 2.Be5 a2 3.Ra1 Ra5 4.Rh2 Rxc5 5.Rhxa2 Rxd5 >> ³ (-0.53) Depth: 9/22 00:00:00 216kN >>1.Rh4 Ra5 2.Rc1 a3 3.Be5 >> ³ (-0.53) Depth: 10/24 00:00:01 897kN >>1.Rh4 Ra5 2.Bd4 a3 3.Rb1 Ra8 4.Be5 a2 5.Ra1 >> ³ (-0.41) Depth: 11/27 00:00:02 2137kN >>1.Rh4 Ra5 2.Rc1 a3 3.Be5 a2 4.Ra1 Ke8 5.Rh2 Rxc5 6.Rhxa2 Rxd5 7.Ra8+ >> ³ (-0.34) Depth: 12/26 00:00:06 5352kN >>1.Rxe7! >> ³ (-0.31) Depth: 12/30 00:00:08 7612kN >>1.Rxe7! >> = (-0.16) Depth: 12/30 00:00:08 7761kN >>1.Rxe7! >> = (0.16) Depth: 12/31 00:00:09 8135kN >>1.Rxe7 Rxe7 2.Bf6 f4 3.d6 Rgg7 4.c6 Rh7 5.Ra1 Be4 6.Bxe7+ Rxe7 7.dxe7+ Kxe7 >>8.Rxa4 Bxc6 >> ² (0.35) Depth: 12/31 00:00:09 8983kN >>1.Rxe7! >> ² (0.66) Depth: 13/31 00:00:12 10896kN >>1.Rxe7 Rxe7 2.Bf6 f4 3.d6 Rge8 4.Ra1 Bc2 5.c6 Bb3 6.Kf2 Bd5 >> ² (0.70) Depth: 13/31 00:00:13 11980kN >>1.Rxe7 Rxe7 2.Bf6 f4 3.d6 Rge8 4.Ra1 Bc2 5.c6 Bb3 6.Kf2 Bd5 >> ² (0.70) Depth: 14/36 00:00:20 19710kN >>1.Rxe7! >> ± (1.00) Depth: 15/42 00:00:40 39164kN >>1.Rxe7 Rxe7 2.Bf6 f4 3.d6 Rge8 4.c6 g3 5.Rc1 Bf5 6.Rc5 Bxe6 7.Ra5 f3 8.Ra8+ Bc8 >> ± (1.19) Depth: 15/42 00:00:45 44181kN >>1.Rxe7! >> +- (1.47) Depth: 16/45 00:01:30 90465kN >> > > >Brian
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