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Subject: Re: Question remains: how do you defend against 43.Rc6

Author: Uri Blass

Date: 07:56:58 10/19/00

On October 19, 2000 at 10:17:32, Thorsten Czub wrote:

>[Event "Open Dutch CC 2000"]
>[Site "Leiden NED"]
>[Date "2000.10.14"]
>[Round "02"]
>[White "Tiger"]
>[Black "Nimzo 8"]
>[Result "1-0"]
>[ECO "D20"]
>
>1.d4 d5 2.c4 dxc4 3.e4 Nf6 4.e5 Nd5 5.Bxc4 Nb6 6.Bb3 Nc6 7.Ne2 Bf5
>8.Nbc3 e6 9.a3 Qd7 10.O-O Be7 11.Be3 O-O-O 12.Rc1 f6 13.exf6 gxf6
>14.Na4 Nd5 15.Bc4 Na5 16.Ba2 Bg4 17.Nac3 Nxc3 18.Rxc3 Kb8 19.f3 Bh5
>20.b4 Nc6 21.b5 Na5 22.Qa4 b6 23.Nf4 Bf7 24.Rfc1 Bd6 25.Nd3 Rhg8
>26.Nc5 Bxc5 27.dxc5 e5 28.Bxf7 Qxf7 29.cxb6 cxb6 30.Qc2 Qg6 31.Qa2 f5
>32.Kh1 f4 33.Bg1 h5 34.Qe2 Qf6 35.a4 h4 36.h3 Qg5 37.R1c2 Rd7
>38.Qe1 Rdg7 39.Qe4 Rd7 40.Qe2 Rgd8 41.Qe1 Qe7 42.Qe4 Qg5 43.Rc6 Nxc6
>44.bxc6 Rc7 45.a5 bxa5 46.Qe2 a4 47.Qb5+ Ka8 48.Qxa4 Qf6 49.Qa5 Qe7
>50.Re2 Rdc8 51.Rxe5 Qg7 52.Qe1 a6 53.Qe2 Rxc6 54.Re7 Qc3 55.Kh2 Qb4
>56.Ra7+ Kb8 57.Qe5+ R8c7 58.Qh8+ Rc8 59.Qxh4 Rc1 60.Bf2 R1c6
>61.Qg5 R8c7 62.Qg8+ Rc8 63.Qg7 R8c7 64.Qh8+ Rc8 65.Qe5+ R8c7 66.h4 Rc2
>67.Bd4 R2c4 68.Qe8+ Rc8 69.Qe4 R8c6 70.Rd7 a5 71.Be5+ Ka8 72.Rd8+ Ka7
>73.Qh7+ Ka6 74.Rb8 Rb6 75.Ra8+ Kb5 76.Qd7+ Rcc6 77.Bc7 Qe1 78.Re8 Qxh4+
>79.Kg1 Qf6 80.Re5+ Kc4 81.Bxb6 Qxe5 82.Qxc6+ Kb3 83.Qe4 Qa1+
>84.Kf2 Qb2+ 85.Qe2 Qxe2+ 86.Kxe2 a4 87.Kd2 a3 88.Ba5 a2 1-0
>
>please mention different defenses for BLACK, i will ask Gambit-Tiger
>what he would have played for WHITE then.
>
>Gambit-Tiger 1.0 played 43.Rc6 with +2.28 in iteration 12.
>The move was found from the beginning of computation (+2.02)
>and it exects black to play Rf7 instead of 43...Nxc6.
>
>thanks in forward.

Amir Ban also replied it.

See http://www.icdchess.com/forums/1/message.shtml?133317

Amir believes that the sacrifice gives chances for both sides to win.
I am interested to know if tiger can get more than 50% against other programs by
Rc6.

My guess is that the result of Rc6(assuming no mistakes) is a draw and the
question is if tiger is smart enough to get practically more than 50% with Rc6.

The only way to know is by testing gambittiger against other programs from the
position after Rc6.

Uri

Re: Question remains: how do you defend against 43.Rc6 Christophe Theron 09:13:07 10/19/00
- Re: Question remains: how do you defend against 43.Rc6 Robert Hyatt 11:43:34 10/19/00
  - Re: Question remains: how do you defend against 43.Rc6 Christophe Theron 12:29:11 10/19/00
    - Re: Question remains: how do you defend against 43.Rc6 Robert Hyatt 15:11:40 10/19/00
      - Re: Question remains: how do you defend against 43.Rc6 Christophe Theron 19:19:03 10/19/00
        
        Re: Question remains: how do you defend against 43.Rc6 Robert Hyatt 20:08:13 10/19/00
        
        Re: Question remains: how do you defend against 43.Rc6 Wayne Lowrance 06:44:46 10/20/00
        
        Re: Question remains: how do you defend against 43.Rc6 Robert Hyatt 19:45:03 10/20/00
        
        Re: Question remains: how do you defend against 43.Rc6 Christophe Theron 22:44:28 10/19/00
        
        Re: Question remains: how do you defend against 43.Rc6 Enrique Irazoqui 08:51:48 10/20/00
        
        Re: Question remains: how do you defend against 43.Rc6 Christophe Theron 11:07:34 10/20/00
        
        Re: Question remains: how do you defend against 43.Rc6 Uri Blass 09:20:35 10/20/00
        
        Re: Question remains: how do you defend against 43.Rc6 Robert Hyatt 06:21:03 10/20/00
        
        Re: Question remains: how do you defend against 43.Rc6 Christophe Theron 10:56:33 10/20/00
        
        Re: Question remains: how do you defend against 43.Rc6 Uri Blass 11:12:59 10/20/00
        
        Re: Question remains: how do you defend against 43.Rc6 Christophe Theron 11:37:58 10/20/00
        
        Re: Question remains: how do you defend against 43.Rc6 Wayne Lowrance 06:50:36 10/20/00
        
        Re: Question remains: how do you defend against 43.Rc6 Uri Blass 07:25:03 10/20/00
        
        Let's back off for a minute from Rc6 Ratko V Tomic 22:00:07 10/19/00
        
        Re: Let's back off for a minute from Rc6 Robert Hyatt 06:26:43 10/20/00
        
        Re: Let's back off for a minute from Rc6 Ratko V Tomic 08:24:34 10/20/00
        
        Re: Let's back off for a minute from Rc6 Robert Hyatt 19:55:35 10/20/00
        
        Re: Let's back off for a minute from Rc6 Ratko V Tomic 23:59:53 10/20/00
        
        Re: Let's back off for a minute from Rc6 Albert Silver 07:02:01 10/22/00
        
        Re: Let's back off for a minute from Rc6 Ratko V Tomic 08:40:42 10/22/00
        
        Re: Let's back off for a minute from Rc6 Albert Silver 10:23:31 10/22/00
        
        Re: Let's back off for a minute from Rc6 Ratko V Tomic 12:23:30 10/22/00
        
        Re: Let's back off for a minute from Rc6 Christophe Theron 21:24:54 10/22/00
        
        Re: Let's back off for a minute from Rc6 Albert Silver 07:17:16 10/23/00
        
        Re: Let's back off for a minute from Rc6 Christophe Theron 14:04:22 10/23/00
        
        Re: Let's back off for a minute from Rc6 Christophe Theron 14:00:54 10/23/00
        
        Re: Let's back off for a minute from Rc6 Christophe Theron 19:19:01 10/21/00
        
        Re: Let's back off for a minute from Rc6 Ratko V Tomic 11:15:33 10/22/00
        
        Re: Let's back off for a minute from Rc6 Christophe Theron 21:32:31 10/22/00
        
        Re: Let's back off for a minute from Rc6 Wayne Lowrance 06:56:24 10/20/00
        
        Re: Let's back off for a minute from Rc6 Robert Hyatt 19:57:08 10/20/00
        
        Re: Let's back off for a minute from Rc6 Uri Blass 07:37:26 10/20/00
        
        Re: Let's back off for a minute from Rc6 Wayne Lowrance 09:19:19 10/20/00
        
        Re: Let's back off for a minute from Rc6 Uri Blass 09:24:53 10/20/00
        
        Re: Let's back off for a minute from Rc6 Wayne Lowrance 10:21:52 10/20/00
        
        Re: Let's back off for a minute from Rc6 Bruce Moreland 00:49:52 10/20/00
        
        Re: Let's back off for a minute from Rc6 Dan Ellwein 10:17:09 10/20/00
      - Re: Question remains: how do you defend against 43.Rc6 Uri Blass 15:19:41 10/19/00

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