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Subject: Re: Another Look at Deep Blue Prototype Vs Fritz

Author: Robert Hyatt

Date: 11:24:57 01/17/02

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On January 17, 2002 at 12:53:21, Joshua Lee wrote:

>Deep Thought / Blue - Fritz / Quest [B33]
>WM Hong Kong (5), 1995
>
>1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Ndb5 d6 7.Bg5 a6 8.Na3 b5
>9.Bxf6 gxf6 10.Nd5 f5 11.Bd3 Be6 12.Qh5 Deep Thought / Blue - Fritz / Quest
>r2qkb1r/5p1p/p1npb3/1p1Np2Q/4Pp2/N2B4/PPP2PPP/R3K2R w KQkq - 0 1
>
>Analysis by Fritz 7:
>
>13.c3 Bxd5 14.exd5 Ne7 15.0-0 Bg7 16.Be4 Qc7
>  ²  (0.60)   Depth: 7/21   00:00:00  104kN
>13.c3 Rg8 14.0-0 h6 15.Be2 b4 16.Nc4 bxc3 17.bxc3
>  ²  (0.60)   Depth: 8/26   00:00:00  211kN
>13.c3 Rg8 14.0-0 h6 15.h3 Bg7 16.Nc2 Ne7 17.Ncb4 Nxd5
>  ²  (0.44)   Depth: 9/28   00:00:02  578kN
>13.0-0!
>  ²  (0.47)   Depth: 9/29   00:00:03  755kN
>13.0-0 h6 14.c3 Rg8 15.h3 Bg7 16.Nc2 Ne7 17.Ncb4 Nxd5
>  ²  (0.44)   Depth: 10/26   00:00:08  2103kN
>13.0-0 h6 14.c3 Rg8 15.h3 Bg7 16.Nc2 Ne7 17.Ncb4 Nxd5 18.exd5 Bd7
>  =  (0.25)   Depth: 11/29   00:00:19  4762kN
>13.c3!
>  ²  (0.29)   Depth: 11/29   00:00:21  5463kN
>13.c3! h6 14.Qf3 Rg8 15.h3 Bg7 16.Nc2 Ne7 17.Ncb4 Nxd5 18.Nxd5 Bxd5
>  ²  (0.32)   Depth: 11/35   00:00:27  7064kN
>13.c3 Rg8 14.Rg1 h6 15.Qe2 Bg7 16.Nc2 Ne7 17.Ncb4
>  ²  (0.35)   Depth: 12/37   00:01:42  26515kN
>13.c3 Rg8 14.Rg1 h6 15.g3 b4 16.Nc4 bxc3 17.bxc3 Bg4 18.Qh4 Qxh4 19.gxh4
>  ²  (0.38)   Depth: 13/37   00:03:00  47260kN
>13.c3 Rg8 14.Rg1 h6 15.g3 Bxd5 16.exd5 Ne7 17.Nc2 Qd7 18.Qf3 Qh3 19.0-0-0 Bg7
>  ²  (0.41)   Depth: 14/40   00:06:26  102183kN
>13.c3 Rg8 14.Rg1 h6 15.g3 b4 16.Nc4 bxc3 17.bxc3 Na5 18.Qd1 Bxd5 19.exd5
>  ²  (0.35)   Depth: 15/44   00:13:51  223553kN
>
>(Lee, Navarre Beach Industries 17.01.2002)
> 12...f4 13.0-0 Rg8 14.Kh1 Rg6 15.Qd1 Deep Thought / Blue - Fritz / Quest
>2rqkb2/5p1p/p1npb1r1/1p1Np3/4Pp2/N2B4/PPP2PPP/R2Q1R1K w - - 0 1
>
>Analysis by Fritz 7:
>
>16.c4 Bg7 17.cxb5 axb5 18.Nxb5 Kf8 19.Qf3 Bxd5 20.exd5
>  ±  (1.10)   Depth: 6/21   00:00:00  116kN
>16.c4--
>  ±  (0.82)   Depth: 7/24   00:00:00  211kN
>16.c4-- Qg5 17.g3 Ne7 18.cxb5 Nxd5 19.exd5 Bxd5+ 20.Kg1
>  ²  (0.50)   Depth: 7/27   00:00:01  267kN
>16.Nb1!
>  ²  (0.54)   Depth: 7/27   00:00:01  325kN
>16.Nb1!
>  ²  (0.69)   Depth: 7/27   00:00:01  334kN
>16.Nb1! Bg7 17.a4 Kf8 18.axb5 axb5 19.Bxb5 Nd4
>  ±  (0.72)   Depth: 7/27   00:00:01  358kN
>16.Nb1--
>  ²  (0.44)   Depth: 8/25   00:00:02  627kN
>16.Nb1--
>  ²  (0.44)   Depth: 8/26   00:00:03  843kN
>16.c4!
>  ²  (0.47)   Depth: 8/30   00:00:04  1055kN
>16.c4!
>  ²  (0.63)   Depth: 8/30   00:00:04  1091kN
>16.c4! Qg5 17.Rg1 bxc4 18.Bxc4 Qh4 19.Rf1 Qg5 20.Rg1 Qh4 21.Rf1 Qg5 22.Rg1 Qh4
>23.Rf1
>  ±  (0.72)   Depth: 8/30   00:00:04  1151kN
>16.c4 Qg5 17.Rg1 Rh6 18.g4 Ne7 19.Rc1 Nxd5 20.exd5
>  ±  (0.75)   Depth: 9/30   00:00:08  2166kN
>16.c4--
>  ²  (0.47)   Depth: 10/33   00:00:21  5627kN
>16.c4-- Qh4 17.g3 Qh3 18.Rg1 Qxh2+ 19.Kxh2 Rh6+ 20.Qh5 Rxh5+ 21.Kg2 Bh3+ 22.Kh2
>  =  (-0.25)   Depth: 10/33   00:00:31  8283kN
>16.Rb1!
>  =  (-0.21)   Depth: 10/33   00:00:33  8674kN
>16.Rb1!
>  =  (0.00)   Depth: 10/33   00:00:33  8740kN
>16.Be2!
>  =  (-0.03)   Depth: 10/33   00:00:42  11156kN
>16.Be2!
>  =  (0.13)   Depth: 10/33   00:00:43  11433kN
>16.Be2! Qg5 17.Rg1 Rh6 18.g3 Ne7 19.g4 Nxd5
>  ²  (0.29)   Depth: 10/33   00:00:48  12757kN
>16.g3!
>  ²  (0.32)   Depth: 10/33   00:01:15  19880kN
>16.g3! Bh6 17.c4 Ne7 18.gxf4 Bh3 19.Nxe7 Bg2+ 20.Kg1 Qxe7 21.f5
>  ²  (0.35)   Depth: 10/35   00:01:31  24104kN
>16.g3 Bh6 17.c4 bxc4 18.Nxc4 Ne7 19.Qa4+ Kf8 20.Nxe7 Qxe7 21.Qxa6 Bg4
>  =  (0.19)   Depth: 11/36   00:02:05  33490kN
>16.Nb1!
>  =  (0.22)   Depth: 11/36   00:02:21  37721kN
>16.Nb1--
>  =  (0.00)   Depth: 12/36   00:03:25  54572kN
>16.Nb1-- Qh4 17.Nd2 Nd4 18.Nf3 Nxf3 19.Qxf3 Bg4 20.Bxb5+ axb5 21.Qd3 f3
>  µ  (-0.96)   Depth: 12/38   00:04:29  71106kN
>16.g3!
>  µ  (-0.93)   Depth: 12/38   00:04:32  71990kN
>16.g3!
>  µ  (-0.78)   Depth: 12/38   00:04:34  72492kN
>16.g3!
>  ³  (-0.46)   Depth: 12/38   00:04:36  73190kN
>16.g3!
>  =  (0.16)   Depth: 12/38   00:05:05  80848kN
>16.g3! Bh6 17.Nb1 Kf8 18.a4 Qg5 19.h4 Qg4 20.Qxg4 Bxg4 21.axb5 axb5
>  ²  (0.29)   Depth: 12/42   00:06:38  106094kN
>16.g3 Bg7 17.Nb1 Kf8 18.a4 Qg5 19.axb5 axb5 20.Bxb5 Nd4 21.Bd3 Rh6
>  =  (0.16)   Depth: 13/42   00:14:13  229838kN
>16.g3 Bg7 17.Rg1 Kf8 18.c3 Ne7 19.Nxe7 Qxe7 20.gxf4 exf4 21.Qh5 b4 22.Nb1 Rh6
>  =  (0.10)   Depth: 14/41   00:29:33  480206kN
>16.g3 Bh6 17.c3 Kf8 18.Nc2 Na5 19.Ncb4 Nc4 20.Bxc4 Rxc4 21.Qd3
>  =  (0.04)   Depth: 15/46   03:18:02  3251767kN
>16.g3 Qg5 17.c4 Nd4 18.cxb5 Bg4 19.h4 Qh5 20.Qa4 Bd7
>  =  (0.00)   Depth: 16/47   05:16:54  5215083kN
>
>(Lee, Navarre Beach Industries 17.01.2002)
> 15...Rc8 16.c4 Qh4 17.g3 Qh3 18.Qd2 f3 19.Rg1 Rh6 20.Qxh6 Qxh6 21.cxb5 Bxd5
>22.exd5 Nb4 23.Bf5 Rc5 24.bxa6 Nxa6 25.Nc2 Qd2 26.Ne1 Rxd5 27.Nxf3 Qxf2 28.Be4
>Ra5 29.Rg2 Qe3 30.Re1 Qh6 31.Bc6+ Kd8 32.a3 f5 33.Rc2 Rc5 34.Rxc5 Nxc5 35.Rf1
>Be7 36.a4 f4 37.gxf4 Qxf4 38.Rg1 Nxa4 39.b4 Qxb4 0-1
>
>
>The only negative thing i can say is if Deep Blue/Thought have more Knowledge
>than is in Commercial Programs why were the correct moves played then?
>Also if Fritz 7 really picked these will it change it's mind later and when will
>the Fritz search in Ply depth be equal to DB/DT if it isn't already?
>Not that this game is an end all say all , it is only one example and i am not
>100% convinced Fritz or any other program is better but from now on i will only
>look at 1996/1997 match games as the one above is NOT officially Deep Blue and
>that incarnation did not have some of the features that Deep Blue Definately
>had.


Two notes about the game.

#1.  This was deep thought hardware.  perhaps 2M nodes per second or so
at best.

#2.  they had a definite problem during the game.  They had found the right
move, but when fritz played their predicted move they had a communication
failure and had to reconnect and re-start the chess machine.  It moved too
quickly as a result, because all the "pondering" information was lost.

Every event has a bit of luck involved.  Sometimes good.  Sometimes bad...



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