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Subject: Re: amazing endgame RB vs PPPP

Author: Mike Byrne

Date: 06:48:11 02/05/06

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On February 04, 2006 at 10:40:01, Vincent Lejeune wrote:

>
>I suppose Rybka (black) play the blunder 67...Kd4 ?and throw away the win, I
>suppose it didn't have EGTB's.
>
with enough time and egtb's it does see the win and mate

FEN: [d]3b3r/3P1P2/3K4/4P3/7P/3k4/8/8 b - - 0 1

Rybka 1.01 Beta 13b:
   3	00:00	         408	0	+1.18	1. ... Bxh4
   3	00:00	         448	0	+1.36	1. ... Ke4
   4	00:00	         792	0	 0.00	1. ... Ke4
   4	00:00	       1.464	0	+0.19	1. ... Kd4
   5	00:00	       4.608	0	+4.65	1. ... Kd4 2.e6
   5	00:00	       7.440	238.080	+4.71	1. ... Ba5 2.Kc6
   6	00:00	      14.072	300.202	+4.71	1. ... Ba5 2.Kd5 Bb4
   7	00:00	      24.166	196.396	+4.71	1. ... Ba5 2.Kd5 Bb4 3.h5
   8	00:00	      54.573	108.090	+4.71	1. ... Ba5 2.Kd5 Bb4 3.h5 Ba5
   8	00:01	      63.559	88.550	+5.58	1. ... Kd4 2.h5 Rh6+ 3.e6 Rh8 4.h6 Ba5
   9	00:02	     101.507	65.828	+5.58	1. ... Kd4 2.h5 Rh6+ 3.e6 Rh8 4.h6 Ba5 5.h7
  10	00:03	     173.846	63.623	+5.58	1. ... Kd4 2.h5 Rh6+ 3.e6 Rh8 4.h6 Ba5 5.h7
Bb4+ 6.Kc6
  11	00:05	     320.226	66.191	+5.58	1. ... Kd4 2.h5 Rh6+ 3.e6 Rh8 4.h6 Ba5 5.h7
Bb4+ 6.Kc6 Ke5
  12	00:08	     578.625	71.138	+5.58	1. ... Kd4 2.h5 Rh6+ 3.e6 Rh8 4.h6 Ba5
5.Kc6 Bb4 6.Kb6 Ke5
  13	00:15	   1.108.557	73.307	+5.58	1. ... Kd4 2.h5 Ba5 3.Ke6 Bb4 4.Kf6 Kd5
5.e6 Bc3+ 6.Ke7 Kc6
  14	00:25	   1.998.403	83.256	+5.58	1. ... Kd4 2.h5 Ba5 3.Ke6 Ke4 4.Kf6 Ra8
5.e6 Bc3+ 6.Ke7 Bb4+ 7.Kf6 Bf8 8.Kg6
  15	00:38	   3.577.056	95.447	+5.58	1. ... Kd4 2.h5 Ba5 3.Ke6 Ke4 4.Kf6 Ra8
5.Ke6 Bb4 6.Kf6 Bf8 7.e6
  15	00:44	   4.147.954	95.919	+6.51	1. ... Ke4 2.e6 Kd4 3.h5 Ba5 4.Kc6 Bb4
5.Kb5 Be7 6.Ka5 Rxh5+ 7.Ka6 Rh8
  16	00:57	   5.667.742	101.044	+6.51	1. ... Ke4 2.e6 Kd4 3.h5 Ba5 4.d8Q Rxd8+
5.Ke7 Ra8 6.Kf6 Bd8+ 7.Kg6 Be7 8.Kf5
  17	01:21	   8.662.407	109.869	+6.57	1. ... Ke4 2.e6 Kd4 3.h5 Ba5 4.d8Q Rxd8+
5.Ke7 Ra8 6.Kf6 Bd8+ 7.Kg6 Be7 8.Kf5
  18	01:54	  13.877.422	124.141	+6.57	1. ... Ke4 2.e6 Kd4 3.h5 Ba5 4.d8Q Rxd8+
5.Ke7 Ra8 6.Kf6 Bd8+ 7.Kf5 Be7 8.h6
  19	02:44	  22.049.085	137.253	+7.44	1. ... Ke4 2.e6 Kd4 3.h5 Ba5 4.d8Q Rxd8+
5.Ke7 Ra8 6.Kf6 Bd8+ 7.Kf5 Be7 8.h6
  20	03:41	  32.845.402	152.446	+7.50	1. ... Ke4 2.e6 Kd4 3.h5 Ba5 4.d8Q Rxd8+
5.Ke7 Ra8 6.Kf6 Bd8+ 7.Kg6 Be7 8.Kf5
  21	05:03	  50.160.456	169.693	+8.36	1. ... Ke4 2.e6 Kd4 3.h5 Ba5 4.d8Q Rxd8+
5.Ke7 Ra8 6.Kf6 Bd8+ 7.Kg6 Be7 8.Kf5
  22	07:38	  75.770.250	169.552	+M22	1. ... Ke4 2.e6 Kd4 3.h5 Ba5 4.d8Q Rxd8+
5.Ke7 Ra8 6.h6 Ke5 7.Kd7 Kf6 8.e7





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