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Subject: Re: Endgame Position : What do Fritz 8 and Shredder 7 say?

Author: Dieter Buerssner

Date: 15:45:10 01/01/03

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On January 01, 2003 at 11:41:37, Roy Brunjes wrote:

>I came across this endgame in a software course I am using for chess training.
>I gave the position to Hiarcs 8, Junior 7, and Chessmaster 9000 and they seem to
>miss the point.  I am wondering what Fritz 8 and Shredder 7 have to say about
>it.
>
>5k2/7p/6p1/1p3p2/2r2P2/5P2/PP5P/5K1R b - -

Not Fritz or Shredder ...

Yace, P4 2.53 GHz shows your lin until 4. Kxg2 after 2 seconds

    179552   0.173   1.12 10t  1...Rc2 2. Rg1 Rxh2 3. Rg2 Rxg2 4. Kxg2 Ke7 5.
                               b3H h5H 6. a4H bxa4H 7. bxa4H {0}
    241500   0.231   1.12 10.  1...Rc2 2. Rg1 Rxh2 3. Rg2 Rxg2 4. Kxg2 Ke7 5.
                               b3 h5 6. a4 bxa4 7. bxa4 {0}
    375658   0.357   1.45 11t  1...Rc2 2. b3 Rxa2 3. h4 Rb2 4. Rg1 b4H 5. Rg2H
                               Rxb3H 6. Rg3H {HT}
    483077   0.461   1.45 11.  1...Rc2 2. b3 Rxa2 3. h4 Rb2 4. Rg1 b4 5. Rg2
                               Rxb3 6. Rg3
    917942   0.874   1.13 12t  1...Rc2 2. Rg1 Rxh2 3. Rg2 Rh4 4. Rd2 Rxf4 5.
                               Ke2 h5 6. Rd7 g5 7. Rh7H {80}
   1387329   1.321   1.13 12.  1...Rc2 2. Rg1 Rxh2 3. Rg2 Rh4 4. Rd2 Rxf4 5.
                               Ke2 h5 6. Rd7 g5 7. Rh7 {80}
   1814622   1.727   1.37 13t  1...Rc2 2. Rg1 Rxh2 3. Rg2 Rxg2 4. Kxg2 Ke7 5.
                               Kg3 Kd6 6. a3 Kc5 7. b3 h5 8. a4 Kb4H {0}
   2559915   2.443   1.37 13.  1...Rc2 2. Rg1 Rxh2 3. Rg2 Rxg2 4. Kxg2 Ke7 5.
                               Kg3 Kd6 6. a3 Kc5 7. b3 h5 8. a4 Kb4 {0}
   3373265   3.215   1.22 14t  1...Rc2 2. Rg1 Rxh2 3. Rg2 Rxg2 4. Kxg2 Ke7 5.
                               a3 Kd6 6. b3 Kc5 7. Kf2H h5H 8. a4H bxa4H 9.
                               bxa4H {0}
   4806188   4.570   1.22 14.  1...Rc2 2. Rg1 Rxh2 3. Rg2 Rxg2 4. Kxg2 Ke7 5.
                               a3 Kd6 6. b3 Kc5 7. Kf2 h5 8. a4 bxa4 9. bxa4
                               {0}
[...]
  54507934  55.757   1.67 18.  1...Rc2 2. Rg1 Rxh2 3. Rg2 Rxg2 4. Kxg2 Ke7 5.
                               Kg3 Kd6 6. Kh4 h6 7. Kg3 Kc5 8. Kh4 Kc4 9. Kg3
                               Kd3 10. Kh4 Ke3 11. Kg3 Kd3 12. Kh4 Ke3 13. Kg3
                               Kd3 {0}
[...]
 520505069  9:54.4   1.83 22.  1...Rc2 2. Rg1 Rxh2 3. Rg2 Rxg2 4. Kxg2 Ke7 5.
                               Kg3 Kd6 6. Kh4 h6 7. Kg3 Kc5 8. Kf2 Kc4 9. Ke3
                               h5 10. Kf2 Kd4 11. Kg2 Kd3 12. Kh3 Ke3 13. Kg2
                               {HT} {0}

I admit, that the score is not that convincing. In the position after 2. Rg1,
with cleared HTs, from ply 1 on Rxh2 is choosen, and never switched away for 2
minutes.

Regards,
Dieter





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