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Subject: Re: Endgame Test Position, From Adams-Kasimdzhanov

Author: Daniel Jackson

Date: 10:04:28 07/09/04

Go up one level in this thread


On July 09, 2004 at 12:58:53, John Merlino wrote:

>On July 09, 2004 at 10:11:52, Anthony Cozzie wrote:
>
>>On July 09, 2004 at 09:37:20, Daniel Jackson wrote:
>>
>>>The Uzbekistani GM was low on time and had played a very incautious move (Rd6).
>>>After checking the lines for a few minutes Adams struck out: 31.Rxb4! axb4
>>>32.Ne7+ Qxe7 33.Qxd6. Now instead of defending the b-pawn (with 33...Qxd6
>>>34.Rxd6 Rb8 or even 33...Qe4) Kasimdzhanov went for 22...Qe2 after which Adams
>>>could pick up the second pawn with 34.Rd4 h5 35.Qxb4. Everone expected Black to
>>>resign, but Kasimdzhanov fought on desperately until the time control and a few
>>>moves after that. 35...Qf3 36.h4 Rc8 37.Qd2 Rc3 38.Rf4 Qc6 39.Kh2 Rxb3 40.Qd8+
>>>Kh7 41.Qd1 Rb7 42.Qxh5+ Kg8 43.Rd4 Qf6 44.Rd2 Ra7 45.a5 g6 46.Qb5 Kh7 47.Qb6
>>>1-0.
>>>
>>>A resulting position had Kasimdzhanov exchanged Queens and played 34..Rb8.
>>>
>>>The play that would have ensued, 35.Rd5!..Kf8. Does your engine find (36.Rb5!!)?
>>>
>>>[D]1r3k2/5ppp/8/3R4/Pp6/1P4P1/5P1P/6K1 w - - 0 36
>>>
>>>Daniel
>>
>>It looks like Black will be in zugzwang after Rb5 Rxb5 axb5 Ke7 Kf1 Kd6 Ke2 Kc5
>>Kd3 Kxb5 Kd4, but it depends who gets the move after the pawn pushes on the
>>kingside.
>>
>>I would play Rd7 in blitz and expect to win easily.  White would win the b-pawn
>>long before black could extricate his king.
>>
>>anthony
>
>CM9_SKR agrees with you about Rd7, although it takes almost 2 1/2 minutes on an
>AMD 2500:
>
>Time	Depth	Score	Positions	Moves
>0:00	2/3	1.95	312		36.Rb5 Ra8 37.Rxb4
>0:00	2/4	1.91	1411		36.Rb5 Rd8 37.Rxb4 Ke7
>0:00	2/5	1.98	4522		36.Rb5 Rd8 37.Rxb4 Ke7 38.Rb5
>0:00	3/6	0.27	12994		36.Rb5 Rxb5 37.axb5 Ke7 38.h4 Kd6
>					39.h5 Kc5 40.h6 gxh6
>0:00	3/6	1.86	20184		36.Rh5 Rc8 37.Rh4 Ke7 38.Kg2 Kd6
>					39.Rxb4
>0:00	3/7	1.93	51028		36.Rh5 Rd8 37.Rh4 Ke7 38.Rxb4 Ke6
>					39.Rb5
>0:00	3/8	1.54	90380		36.Rh5 h6 37.Kg2 Rd8 38.Rb5 Rd4
>					39.Rb8+ Ke7 40.f3
>0:00	3/8	1.70	110020		36.f4 Re8 37.Rb5 Re4 38.Kf2 h6
>					39.Kf3 Rd4
>0:00	4/9	1.63	271940		36.f4 h6 37.Kg2 Re8 38.Rb5 Re2+
>					39.Kh3 Re4 40.Rb8+ Ke7 41.a5
>0:03	5/10	1.36	1020602		36.f4 Ke7 37.Kf2 Rb6 38.Rg5 g6
>					39.Rd5 Rc6 40.Rb5 Rc2+ 41.Ke3
>0:04	5/10	1.44	1289384		36.Kg2 Ke7 37.Rh5 h6 38.f3 Rc8
>					39.Rb5 Rc2+ 40.Kh3 Rc3 41.Rxb4 Rxf3
>0:04	5/10	1.51	1364346		36.Rh5 h6 37.Re5 Rd8 38.Rb5 Rd4
>					39.f4 Ke7 40.Rb7+ Ke8 41.a5
>0:05	5/10	1.66	1854064		36.Re5 Rb7 37.Kf1 Rd7 38.Rb5 Rd4
>					39.Ke2 Ke7 40.Ke3 Rg4
>0:07	6/11	1.59	2436795		36.Re5 Rb7 37.f4 g6 38.Kf2 Rd7
>					39.Rb5 Rd2+ 40.Ke3 Rxh2 41.Rxb4 Ra2
>0:15	7/12	1.51	5242192		36.Re5 h6 37.f4 f6 38.Rc5 Ke7 39.Rc7+
>					Kf8 40.Kf2 Rb6 41.Ke3 Ra6 42.f5
>0:41	8/13	1.50	14032118	36.Re5 Rb7 37.Kg2 f6 38.Re4 g6
>					39.g4 Kf7 40.Kf3 f5 41.gxf5 gxf5
>					42.Re5 Kf6
>1:24	9/14	1.49	29730338	36.Re5 Rb7 37.f4 f6 38.Re4 g6 39.g4
>					Kf7 40.Kf2 f5 41.gxf5 gxf5 42.Re5
>					Kf6 43.Re8
>2:25	9/14	1.56	51224560	36.Rd7 Rb6 37.Rc7 g6 38.Kf1 h5
>					39.Ke2 Ke8 40.Kd3 Rf6 41.Kc4 Rxf2
>					42.Kxb4 Rxh2
>
>jm

This does not surprise me.

Play Rb5 for CM and see the result.

Daniel



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