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Subject: Re: Will the real Pro Deo please stand up?

Author: Robert Hyatt

Date: 08:42:47 08/19/04

Go up one level in this thread


On August 19, 2004 at 09:37:41, Albert Silver wrote:

>This is really getting tiresome. I ran a series of games between Pro Deo S&D and
>Ruffian 1.05 in Arena. Pro Deo is installed as a UCI engine which shouldn't be
>an issue. Arena doesn't freeze or anything so that's not the problem. The
>problem is that the analysis between Pro Deo running under Arena and Fritz,
>using the exact same files (personality, etc) produces different results. As a
>tie-breaker, I took a look at Chess Partner 5.3 and it produced different
>analysis, not to mention different depths and times. To make things even harder
>to udnerstand, at least for me, when I change the hash sizes, I not only get
>different times to reach a certain depth (expected), I get different main lines
>adn evaluations (not expected). Note in particular the analysis at ply depth
>11-13.

That last part is not unexpected.  Changing the hash size changes the hit rate
and specific hits that occur.  Changing _anything_ inside these large trees can
change the score, the PV, the time, or any combination of these...



>
>BTW, don't think it may be using the Rebel.eng profile instead, since I checked
>by renaming the default profile and made the Rebel.eng profile identical to my
>personal settings. Just in case.
>
>                                       Albert
>
>Here is an example in case. BTW, I disabled all learning, and the setting is to
>now clear the hashtables.
>
>[D]4r2k/7p/4rqp1/p7/Pp1PBn2/5QN1/1P3PPP/3R2K1 b - - 1 35
>
>Pro Deo S&D under Arena (40Mb hash):
>
>11   00:10 -0.64   Re6d6 d4d5 Re8d8 Qf3e3 Nf4xd5
>11   00:14 -0.72   Re6e7 d4d5 Re8f8 b2b3 Nf4h3+ g2xh3 Qf6xf3 Be4xf3 Rf8xf3 d5d6
>Re7d7 Ng3e4 Rf3xb3
>12   00:32 -0.69   Re6e7 d4d5 Nf4xd5 Be4xd5 Qf6xf3 g2xf3 Re7e1+
>13   01:23 -0.57   Re6e7 d4d5
>13   02:53 -0.76   Re8f8 d4d5 Re6e8
>14   03:45 -0.55   Re8f8 d4d5 Re6e7 b2b3 Qf6b2 Kg1h1 Re7e8
>14   05:21 -0.69   Re6e7 d4d5 Qf6h4
>
>Pro Deo under Arena (60Mb hash):
>
>11   00:14 -0.64   Re6d6 d4d5 Re8d8 Rd1c1 Qf6e5 Qf3b3 Nf4xd5 Rc1c5
>11   00:18 -0.72   Re6e7 d4d5 Re8f8 b2b3 Nf4h3+ g2xh3 Qf6xf3 Be4xf3 Rf8xf3 d5d6
>Re7d7 Ng3e4 Rf3xb3
>12   00:34 -0.64   Re6e7 d4d5 Re7d7 Rd1d2 Re8c8 Rd2d1 Qf6e5 Qf3b3 h7h6 Be4f3
>Rd7c7
>13   01:31 -0.60   Re6e7 d4d5 Re7f7 b2b3 Qf6h4 Kg1f1 Qh4xh2 Ng3f5 g6xf5
>13   02:21 -0.60   Re8f8
>13   02:36 -0.76   Re8f8 d4d5 Re6e8
>14   03:49 -0.69   Re8f8 d4d5 Re6e7 Rd1d2
>
>Pro Deo under Fritz (40Mb hash):
>
>35...Rd6 36.d5 Red8 37.Rf1 Qe5 38.Rc1 Nxd5 39.Rc5 Qe6 40.Rxa5 Nb6
>  ³  (-0.52)   Depth: 11   00:00:12  12867kN
>35...R6e7 36.d5 Rf7 37.Rd2 Rc8
>  ³  (-0.57)   Depth: 11   00:00:29  30261kN
>35...R6e7 36.Kh1
>  ³  (-0.65)   Depth: 12   00:01:36  101580kN
>35...Rd6 36.d5 Red8 37.Qb3 Qe6 38.Qe3
>  µ  (-0.77)   Depth: 12   00:01:42  108258kN
>35...Rd6 36.Qe3 Red8 37.h3 Rxd4 38.Rxd4 Rxd4 39.Bf3 Rd8 40.Ne4
>  µ  (-0.89)   Depth: 13   00:02:38  169928kN
>
>Pro Deo under Fritz (60Mb hash):
>
>35...Rd6 36.d5 Red8 37.Rf1 Qe5 38.Rc1 Nxd5 39.Rc5 Qe6 40.Rxa5
>  ³  (-0.52)   Depth: 11   00:00:13  12879kN
>35...R6e7 36.d5 Rf7
>  ³  (-0.57)   Depth: 11   00:00:31  31116kN
>35...R6e7 36.Kh1 Rf7 37.h3 Qe6 38.d5 Qd7 39.Qg4 Qxa4 40.d6 h5
>  ³  (-0.64)   Depth: 12   00:01:56  122630kN
>35...Rd6
>  ³  (-0.64)   Depth: 12   00:02:02  128979kN
>35...Rd6 36.h3 Red8 37.Kh2
>  µ  (-0.92)   Depth: 12   00:02:15  142686kN
>35...Rd6 36.d5 Red8 37.Qb3 Qe6
>  µ  (-0.74)   Depth: 13   00:03:06  198623kN
>
>Pro Deo under Chess Partner 5.3 (60MB hash):
>
>00:00:08.6	0.65	10	Re6-d6 d4-d5 Qf6-e5 Qf3-e3 Re8-d8 Qe3-a7 Qe5xb2 Qa7-f7 Qb2-b3
>00:00:11.4	0.64	11	Re6-d6 d4-d5 Re8-d8 Rd1-c1 Qf6-e5 Qf3-b3 Nf4xd5 Rc1-c5
>00:00:15.5	0.72	11	Re6-e7 d4-d5 Re8-f8 b2-b3 Nf4-h3+ g2xh3 Qf6xf3 Be4xf3 Rf8xf3
>d5-d6 Re7-d7 Ng3-e4 Rf3xb3
>00:00:32.2	0.64	12	Re6-e7 d4-d5 Re7-d7 Rd1-d2 Re8-c8 Rd2-d1 Qf6-e5 Qf3-b3 h7-h6
>Be4-f3 Rd7-c7
>00:01:34.2	0.60	13	Re6-e7 d4-d5 Re7-f7 b2-b3 Qf6-h4 Kg1-f1 Qh4xh2 Ng3-f5 g6xf5
>00:02:26.0	0.60	13	Re8-f8
>00:02:40.4	0.76	13	Re8-f8 d4-d5 Re6-e8
>00:03:54.2	0.69	14	Re8-f8 d4-d5 Re6-e7 Rd1-d2



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