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Subject: Re: A endgamelesson by Fritz/Deepfritz in how to get a winning queenending

Author: Howard Exner

Date: 15:33:36 01/26/01

Go up one level in this thread


Here is Gambit Tiger's analysis

1R6/6kp/6p1/1P1q4/8/6QP/4r1PK/8 w - a3 0 1

00:00:00.8	2.34	7	129271	b6 Kh6 b7 Rb2 Qf4+ Qg5 Qe4 Kh5
00:00:00.1	2.82	7	279579	b6 Kh6 b7 Rb2 Rg8 Qxg8 Qh4+ Kg7 Qd4+ Kh6 Qxb2
00:00:01.9	2.92	8	602527	b6 Kh6 b7 Rb2 Rg8 Qxg8 Qh4+ Kg7 Qd4+ Kh6 Qxb2
00:00:04.9	2.96	9	1432797	b6 Kh6 b7 Rb2 Rg8 Qxg8 Qh4+ Kg7 Qd4+ Kf7 Qxb2 Qb8+ g3
00:00:11.3	2.92	10	3689430	b6 Kh6 b7 Rb2 Rg8 Qxg8 Qh4+ Kg7 Qd4+ Kf7 Qxb2 Qb8+ g3
h5
00:00:28.8	3.14	11	9654574	b6 Kh6 Rc8 Re4 Rc7 Qe5 Qxe5 Rxe5 b7 Rb5 Kg3 Rb6 Kf4
00:00:58.6	3.20	12	20383565	b6 Kh6 Rc8 Re4 Rc7 Qe5 b7 Qxg3+ Kxg3 Rb4 Kf3 Rb2 Ke3
Rb3+ Kd4 Rb2
00:01:52.1	3.20	13	38585035	b6 Kh6 Rc8 Re4 Rc7 Qe5 b7 Qxg3+ Kxg3 Rb4 Kf3 Rb2 Ke3
Rb3+ Kd4 Rb2 g3
00:10:20.5	3.21	14	217952031	b6 Kh6 Rf8 Qe4 Rf2 Re3 b7 Rxg3 b8Q Re3 Qf8+ Kg5
Qf6+ Kh6 Rf4 Qe5 Qf8+ Kh5
00:30:54.0	3.24	15	669250048	b6 Qe5 Rb7+ Kh6 Rd7 Qxg3+ Kxg3 Rb2 b7 Rb4 Kf3 g5
Ke3 Kg6 Kd3 h6 Kc3 Rb1 Kc4

So it never wavers from b6 from the start. I'll continue with the following
position...

[D]1R6/6kp/1P1q2p1/8/8/7P/6QK/8 w - a3 0 1

So far it has this

00:00:00.0	5.89	11	140599	Qg3
00:00:00.1	4.99	11	252581	Qg3
00:00:02.0	4.09	12	708445	Qg3
00:00:07.4	3.19	13	2782780	Qg3
00:00:13.9	4.09	14	4961395	Qg3
00:01:18.1	7.71	14	27270962	Qg3 Qd2+ Kg1 Qd1+ Kg2 Qd2+ Qf2 Qg5+ Kf1 Qc1+ Qe1
Qc4+
00:02:16.1	7.71	15	46986240	Qg3 Qd2+ Kg1 Qd1+ Kg2 Qd2+ Qf2 Qg5+ Kf1 Qc1+ Qe1
Qc4+
00:05:42.2	7.65	16	127896277	Qg3 Qd2+ Kg1 Qd1+ Kg2 Qd2+ Qf2 Qg5+ Kf1 Qc1+ Qe1
Qc4+ Qe2 Qf4+ Kg2 Qg5+ Qg4 Qd2+

Since DF beat Fritz with Rxg2, where did Junior go wrong? Or does Rxg2 simply
prolong the eventual defeat until much later?



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