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Subject: Re: How Rebel plays at SSDF (not the opening is quilty)

Author: blass uri

Date: 09:01:56 06/17/98

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On June 15, 1998 at 18:56:12, Enrique Irazoqui wrote:

>Those are in PGN the 13 opening lines posted by you:
>
>[Event "?"]
>[Site "?"]
>[Date "????.??.??"]
>[Round "?"]
>[White "R9"]
>[Black "Diep"]
>[Result "*"]
>[ECO "C63"]
>[PlyCount "9"]
>
>1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. d3 d6 5. exf5 *
>
black can have good result in this line if white is fritz5
for example
5...Bxf5 6.d4 0.50/12 Nge7 7.Bg5 0.63/11 a6 8.Bxc6+ 0.56/12 bxc6
9.dxe5 0.75/12 Rb8 10.Na3 0.94/11 h6 11.Bxe7 0.84/11 Qxe7
12.0-0 1.06/11 d5 13.Rb1 1.00/12 Bg4 14.c3 1.06/11 Rb6
15.Re1 1.06/12 Qf7 16.e6 1.00/12 Qf4 17.Nc2 0.94/12 Be7
18.Qd4 1.03/12 Qxd4 19.Nfxd4 1.06/13 c5 20.h3 0.66/13 Bh5
21.Nf5 0.50/12 Bg6 22.g4 0.50/12 Bxf5 23.gxf5 0.59/12 Rf8
24.Ne3 0.34/12 d4 25.Nc4 0.25/12 Rb8 26.cxd4 0.22/12 cxd4
27.Re4 0.22/12 Rb5 28.Rxd4 0.03/12 Rbxf5 29.Rf1 0.06/12 R8f6
30.Re4 0.03/12 Bc5 31.Ne3 0.00/11 Rg5+ 32.Kh2 -0.13/13 Rgg6
33.f3 -0.16/12 Bd6+ 34.Kh1 -0.25/13 Rxe6 35.Nc4 -0.31/11 Rxe4
36.fxe4 -0.56/12 Rg3 37.e5 -0.66/13 Rxh3+ 38.Kg2 -0.84/14 Rh4
39.b3 -0.97/13 Be7 40.Rd1 -0.94/12 h5
this game was played by fritz5 against itself 160 minutes per 40 moves
on my pentium 200MMX.

the opening can be quilty only if fritz5 had some moves in its power book
after move 5 that are different from this game.

Uri
  >----------------------------------
>
>All moves are played by Rebel 9 and Diep while still in book. I checked these
>positions on a PII/300 at one minute per move and from the point of view of Diep
>in the first move out of book:
>
>     Fritz 5      Crafty 14.12        Diep         Hiarcs 6
>1-    -0.50          -0.53            -1.00
>2-    -0.16          -0.20            -0.84
>3-    +0.06          -0.20            -1.01
>4-     0.00          -0.16            -0.24
>5-    -1.25          -1.13            -1.16         -1.46
>6-    -1.06          -1.87            -1.24         -1.48
>8-    -0.56          -0.45            -0.58
>11-   -0.63          -0.88            -0.78
>12-   -0.13          -0.59            -0.44
>
>Lines 6, 7, 9 and 10 are identical, and so are lines 5 and 13.
>
>Lines 5 and 6 are the most favorable to Rebel and the only ones that could be
>suspected. Line 5 was played in a game Karklins-Leverett in the Chicago US Open
>of 1989. This game ended in a draw. Line 6 was played in the game Hazai-Moehring
>of Halle2 1981 and it also ended in a draw. No special computer killer lines
>here, although no one would be very happy playing black's side.
>
>Nothing strange about the other lines. Black is slightly down when it leaves
>book, but this is not uncommon playing black.
>
>What happened in the games Fritz 5 - Rebel 9 played by the SSDF has nothing to
>do with cooked lines. Rebel was unable to save its games and therefore to
>"learn", and it fell over and over on the same (not cooked) lines.
>
>Enrique



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