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Subject: Re: tough position

Author: Will Singleton

Date: 00:23:05 03/08/04

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On March 07, 2004 at 19:54:18, Steven J. Brann wrote:

>On March 07, 2004 at 19:18:27, Will Singleton wrote:
>
>>[d]2R2bk1/5p1p/3p4/4p3/1P1nP3/7P/4r1P1/1R5K b - - bm Re3
>>
>>from ICC today, Bookbuilder-Amateur
>>
>>It's possible Re3 draws, but I'm not certain.  The move Amateur played, Nb5,
>>looks like it will probably lose, with the line Nb5 Rb8 Nc3 Rb3 Nxd4 b5!  I
>>wonder if the passer supported by two rooks, with kings not around, should get
>>more points.
>>
>>Will
>
>Chessmaster 9000 locks in on 1...Nb5 immediatly but ultimately sees a draw after
>6:29 on a P4-3.0G HT machine using CM9-SKR personality with SS=16 and 128MB
>hash.
>
>Time	Depth	Score	Positions	Moves
>0:00	1/8	-0.69	98850		1...Nb5 2.Rf1 Re3 3.Rf3 Rxf3 4.gxf3
>					Kg7 5.Kg2 d5 6.exd5 Bxb4
>0:00	1/9	-0.78	229548		1...Nb5 2.Rf1 Re3 3.Rf3 Rxf3 4.gxf3
>					Kg7 5.Kg2 Be7 6.Kg3 Bg5
>0:01	1/10	-0.79	438496		1...Nb5 2.Rf1 h5 3.Rf5 Kg7 4.Rg5+
>					Kh6 5.Rg3 Bg7 6.Rg8 Bf6 7.Rf3
>0:03	1/11	-0.80	1102004		1...Nb5 2.Rb8 Nc3 3.Rc1 Re3 4.Ra8
>					d5 5.exd5 Kg7 6.Rc8 Nxd5 7.b5
>0:08	1/12	-0.81	2456294		1...Nb5 2.Rf1 Kg7 3.Rb8 Nc3 4.Rb7
>					Kg6 5.Rfxf7 Bh6 6.Rfe7 Nxe4 7.Re6+
>					Kh5 8.Rxh7
>0:14	1/13	-0.81	4393176		1...Nb5 2.Rf1 Kg7 3.Rb8 Nc3 4.Rb7
>					Kg6 5.Rfxf7 Bh6 6.Rfe7 Nxe4 7.Re6+
>					Kh5 8.Rxh7
>1:00	1/14	-0.96	17697037	1...Nb5 2.Rb8 Nc3 3.Rc1 Re3 4.b5
>					Kg7 5.Re8 Nxb5 6.Rcc8 Rxe4 7.Rxf8
>					Kf6 8.Rc1 d5
>1:20	1/15	-0.85	24263003	1...Nb5 2.Rb8 Nc3 3.Rc1 Re3 4.b5
>					Kg7 5.Re8 Nxb5 6.Rcc8 Rxe4 7.Rxf8
>					Re2 8.Rfd8 Re1+ 9.Kh2 Kf6
>2:48	2/16	-0.17	51689763	1...Nb5 2.Rb8 Nc3 3.Rb3 Nxe4 4.b5
>					Kg7 5.b6 Be7 6.b7 d5 7.Rg8+ Kxg8
>					8.b8=Q+ Bf8 9.Kh2 f6 10.Qc8
>6:29	3/17	0.00	120512941	1...Nb5 2.Rb8 Nc3 3.Rb3 Nxe4 4.b5
>					Kg7 5.b6 Be7 6.b7 Bh4 7.Rb1 Ng3+
>					8.Kh2 Ne4 9.Kh1
>15:33	4/18	0.00	294347697	1...Nb5 2.Rb8 Nc3 3.Rb3 Nxe4 4.b5
>					Kg7 5.b6 Be7 6.b7 Re1+ 7.Kh2 Bh4
>					8.Ra8 Bf2 9.g3 Re2 10.Kh1 Re1+
>					11.Kh2
> Steve

It's a bit deeper than that.  In your last line, after 6.b7, black is lost.
There are other intermediate alternatives, but after the initial move Nb5, it
looks like black is in trouble.  As I indicated, Re3 might save things.




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