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Subject: Re: Nunn Rook ending quiz

Author: Joachim Rang

Date: 12:00:34 10/05/02

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On October 05, 2002 at 14:33:48, Sune Larsson wrote:

>
> [D]8/1pp2kp1/p6p/8/5PP1/1P6/P2rRK1P/8 b - - 0 6
>
> This is a position from the Nunn1 tourney. Black has played an active game
> and very early got rid of his double pawn. Can you imagine any top program
> losing this position with the black pieces? And this in just another 11 moves..
> "Anything" draws here - keeping the rook or moving into a pawn ending.
> Black chose to swap rooks. 40 moves in 1 hour.
>
>
> Quiz: ShredderPB was playing white but what wellknown program misplayed the
>       position so much as to lose it in another 11 moves?
>
>
> Clue1: It was not a German program.
>
> Clue2: The author's first name begins with
>        the same letter as the program.
>
>
> The whole game below - with "Program X" as black ;-)
>
>
>[Event "Nunn1 40/60'"]
>[Site "Kil"]
>[Date "2002.09.23"]
>[Round "2"]
>[White "Shredder Paderborn"]
>[Black "Program X"]
>[Result "1-0"]
>[SetUp "1"]
>[FEN "8/1ppr1kp1/p1p4p/8/8/5P2/PPP1RKPP/8 w - - 0 1"]
>[PlyCount "33"]
>[EventDate "2002.??.??"]
>
>{W=17.9 ply; 238kN/s; 881 465 TBAs
>B=16.8 ply; 399kN/s; 204 542 TBAs
>} 1. f4
>{0.23/14 95} 1... c5 {0.28/14 113} 2. g4 {(h4) 0.29/14 90} 2... Rd1 {
>(c4) 0.19/14 155} 3. b3 {(Kf3) 0.19/13 108} 3... c4 {0.06/14 247} 4. Re4 {
>(h4) 0.02/13 133} 4... cxb3 {-0.09/13 71} 5. cxb3 {-0.07/15 105} 5... Rd2+ {
>(b5) -0.09/13 163} 6. Re2 {0.06/13 7} 6... Rxe2+ {(Rd3) -0.19/15 118} 7. Kxe2 {
>0.24/14 6} 7... Ke6 {(b5) -0.28/14 70} 8. Ke3 {(h4) 0.23/18 143} 8... Kd5 {
>(c5) -0.19/14 79} 9. h4 {0.16/18 115} 9... g6 {0.09/15 73} (9... c5) 10. b4 {
>0.16/18 126} 10... b6 {0.09/16 100} 11. a3 {(Kd3) 0.22/18 134} 11... c6 $2 {
>(Ke6) 0.03/16 79} (11... c5 $1 12. bxc5 bxc5 $11) 12. a4 {0.33/18 76} 12... c5
>{(a5) 1.56/18 261} 13. bxc5 {0.01/20 399} 13... Kxc5 {(bxc5) 1.97/19 297} 14.
>f5 {3.93/19 89} 14... g5 {8.50/20 276} 15. hxg5 {7.56/20 77} 15... hxg5 {
>8.94/21 119} 16. Ke4 {11.80/21 77} 16... Kd6 {9.00/19 42} 17. Kd4 {11.97/21 159
>} 1-0
>
>
>/s


hm, according to your previous post, it must be DeepFritz, Yace or CM8777, only
against these opponents Shredder was able wo win a game. Not a german position
eliminates Deep Fritz and Yace, so I think its CM8777.




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