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Subject: Re: Testposition: Ivanchuk - Ponomariov, endgame (diagram)

Author: Dann Corbit

Date: 13:45:28 01/17/02

Go up one level in this thread


On January 17, 2002 at 14:41:16, Eduard Nemeth wrote:

>First: game two end draw.
>
>Position after move 44 (white):
>
>[D]8/2p4p/7B/2b2r2/8/P4k1P/1P1R1N2/6K1 b - - 0 44
>
>Ponomariov played here 44...Rf6! Wrong move is here 44...Kg3??, then
>white win forced in the bishop-endgame!
>
>That a move play here Your program?

Yace is fastest so far (7:48):

black ( 1): epd \rf6.epd
8/2p4p/7B/2b2r2/8/P4k1P/1P1R1N2/6K1 b - - bm Rf6; am Kg3;
Stored 8 learned positions into hash table
solution  Rf6! Kg3?
usetime = 998.00, mintime = 998.00 maxtime = 998.00 tl 998.00 ml 0
        11   0.001  -4.99  1t  1...Bxf2+ 2.Rxf2+ Ke4 3.Rxf5 Kxf5 {-430}
        14   0.002  -4.10  1t  1...c6 {-420}
        36   0.002  -4.10  1.  1...c6 {-420}
        74   0.003  -4.28  2t  1...c6 2.a4 {-420}
       192   0.003  -4.26  2t+ 1...Kg3 2.Rd6 {-420}
       227   0.004  -4.22  2t  1...Kg3 2.Rd3+ Kh4 {-420}
       285   0.004  -4.22  2.  1...Kg3 2.Rd3+ Kh4 {-420}
       700   0.005  -3.24  3++ 1...Kg3 2.Rd3+ Rf3 3.Bf8 Rxd3 4.Bxc5 {-270}
       722   0.006  -3.24  3t  1...Kg3 2.Rd3+ Rf3 3.Bf8H Rxd3H 4.Bxc5H {-270}
       961   0.006  -3.24  3.  1...Kg3 2.Rd3+ Rf3 3.Bf8 Rxd3 4.Bxc5 {-270}
      1696   0.008  -2.84  4++ 1...Kg3 2.a4 Bxf2+ 3.Kh1 {-80}
      2236   0.010  -1.84  4++ 1...Kg3 2.Rd3+ Rf3 3.Rxf3+ Kxf3 4.Be3 Bxe3 {-70}
      2883   0.012  -1.61  4t  1...Kg3 2.Rd3+ Rf3 3.Rxf3+ Kxf3 4.b3 Bxf2+
                               5.Kf1 {-80}
      4119   0.015  -1.61  4.  1...Kg3 2.Rd3+ Rf3 3.Rxf3+ Kxf3 4.b3 Bxf2+
                               5.Kf1 {-80}
      7098   0.022  -1.55  5t  1...Kg3 2.Rd3+ Rf3 3.Rxf3+ Kxf3 4.Kf1 Bxf2 5.a4
                               c6H {-80}
      9900   0.028  -1.55  5.  1...Kg3 2.Rd3+ Rf3 3.Rxf3+ Kxf3 4.Kf1 Bxf2 5.a4
                               c6 {-80}
     17533   0.042  -1.71  6t  1...Kg3 2.Rd3+ Rf3 3.Rxf3+ Kxf3 4.b3 Bxf2+
                               5.Kf1 c6 6.a4 Bc5 {-80}
     21441   0.050  -1.71  6.  1...Kg3 2.Rd3+ Rf3 3.Rxf3+ Kxf3 4.b3 Bxf2+
                               5.Kf1 c6 6.a4 Bc5 {-80}
     51070   0.108  -1.51  7t  1...Kg3 2.Rd3+ Rf3 3.Rxf3+ Kxf3 4.b3 Bxf2+
                               5.Kf1 Bc5 6.b4 Be7 7.Ke1 {-80}
     64239   0.133  -1.51  7.  1...Kg3 2.Rd3+ Rf3 3.Rxf3+ Kxf3 4.b3 Bxf2+
                               5.Kf1 Bc5 6.b4 Be7 7.Ke1 {-80}
    138195   0.277  -1.45  8t  1...Kg3 2.Rd3+ Rf3 3.Rxf3+ Kxf3 4.b3 Bxf2+
                               5.Kf1 Bb6 6.Bg5 Kg3 7.h4H c6H {-80}
    165585   0.327  -1.45  8.  1...Kg3 2.Rd3+ Rf3 3.Rxf3+ Kxf3 4.b3 Bxf2+
                               5.Kf1 Bb6 6.Bg5 Kg3 7.h4 c6 {-80}
    320495   0.617  -1.52  9t  1...Kg3 2.Rd3+ Rf3 3.Rxf3+ Kxf3 4.Bg5 Bxf2+
                               5.Kf1 Bc5 6.a4 c6 7.b3 h5H 8.Bd2H {-80}
    425514   0.818  -1.52  9.  1...Kg3 2.Rd3+ Rf3 3.Rxf3+ Kxf3 4.Bg5 Bxf2+
                               5.Kf1 Bc5 6.a4 c6 7.b3 h5 8.Bd2 {-80}
    839838   1.615  -1.49 10t  1...Kg3 2.Rd3+ Rf3 3.Rxf3+ Kxf3 4.Bg5 Bxf2+
                               5.Kf1 c6 6.b4 Bd4 7.a4 h5 8.Be7H Ke4H {-80}
   1063686   2.042  -1.49 10.  1...Kg3 2.Rd3+ Rf3 3.Rxf3+ Kxf3 4.Bg5 Bxf2+
                               5.Kf1 c6 6.b4 Bd4 7.a4 h5 8.Be7 Ke4 {-80}
   1744921   3.334  -1.56 11t  1...Kg3 2.Rd3+ Rf3 3.Rxf3+ Kxf3 4.b4 Bxf2+
                               5.Kf1 Bd4 6.Bg5 c6 7.a4 h5H 8.Be7H Ke3H 9.Ke1H
                               {-80}
   3033940   5.885  -1.56 11.  1...Kg3 2.Rd3+ Rf3 3.Rxf3+ Kxf3 4.b4 Bxf2+
                               5.Kf1 Bd4 6.Bg5 c6 7.a4 h5 8.Be7 Ke3 9.Ke1 {-80}
   5175093   9.964  -1.52 12t  1...Kg3 2.Rd3+ Rf3 3.Rxf3+ Kxf3 4.Kf1 Bxf2
                               5.Bg5 Bc5 6.a4H c6H 7.b3H h5H 8.Bf6H Ke3H
                               9.Kg1H {HT}
   6234239  12.001  -1.52 12.  1...Kg3 2.Rd3+ Rf3 3.Rxf3+ Kxf3 4.Kf1 Bxf2
                               5.Bg5 Bc5 6.a4 c6 7.b3 h5 8.Bf6 Ke3 9.Kg1
   9821680  18.600  -1.62 13t  1...Kg3 2.Rd3+ Rf3 3.Rxf3+ Kxf3 4.Bg5 Bxf2+
                               5.Kf1 Bd4 6.b4 c5 7.b5 c4 8.a4 Bb6 9.Bd2H Ke4H
                               {-80}
  16724537  32.275  -1.62 13.  1...Kg3 2.Rd3+ Rf3 3.Rxf3+ Kxf3 4.Bg5 Bxf2+
                               5.Kf1 Bd4 6.b4 c5 7.b5 c4 8.a4 Bb6 9.Bd2 Ke4
                               {-80}
  27892668  53.800  -1.56 14t  1...Kg3 2.Rd3+ Rf3 3.Rxf3+ Kxf3 4.Bg5 Bxf2+
                               5.Kf1 Bd4 6.b4 c6 7.a4 Bc3 8.Be7 h5 9.Bd6 Bd4
                               10.Bc5 Bxc5 {270}
  38131376  1:14.9  -1.56 14.  1...Kg3 2.Rd3+ Rf3 3.Rxf3+ Kxf3 4.Bg5 Bxf2+
                               5.Kf1 Bd4 6.b4 c6 7.a4 Bc3 8.Be7 h5 9.Bd6 Bd4
                               10.Bc5 Bxc5 {270}
  56390920  1:50.1  -1.64 15t  1...Kg3 2.Rd3+ Rf3 3.Rxf3+ Kxf3 4.Bd2 Bxf2+
                               5.Kf1 Bd4H 6.Bc3H Be3H 7.a4H c6H 8.Be1H Bd4H
                               9.b3H {HT}
  94618836  3:12.7  -1.64 15.  1...Kg3 2.Rd3+ Rf3 3.Rxf3+ Kxf3 4.Bd2 Bxf2+
                               5.Kf1 Bd4 6.Bc3 Be3 7.a4 c6 8.Be1 Bd4 9.b3
 133267682  4:36.2  -1.73 16t  1...Kg3 2.Rd3+ Rf3 3.Rxf3+ Kxf3 4.Bg5 Bxf2+
                               5.Kf1 Bd4H 6.b3H {HT}
 214083539  7:48.0  -1.72 16t+ 1...Rf6 2.Rc2 Bd4 3.Bc1 Kg3 4.Rc3+ Rf3 5.Rxf3+
                               Kxf3 6.Bd2 Ke2 7.Bh6
 223801430  8:10.0  -1.72 16t  1...Rf6 2.Rc2 Bd4 3.Bc1H Kg3H 4.Rc3+H Rf3H
                               5.Rxf3+H Kxf3H 6.Kf1H Bxf2H 7.Bd2H Bd4H 8.Bc3H
                               Bxc3H 9.bxc3H Ke4H 10.Ke2H Kd5H 11.Kd3H Kc5H
                               12.c4H h6H {HT} {-80}
 260089064  9:33.4  -1.72 16.  1...Rf6 2.Rc2 Bd4 3.Bc1 Kg3 4.Rc3+ Rf3 5.Rxf3+
                               Kxf3 6.Kf1 Bxf2 7.Bd2 Bd4 8.Bc3 Bxc3 9.bxc3 Ke4
                               10.Ke2 Kd5 11.Kd3 Kc5 12.c4 h6 {HT} {-80}



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