Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Diagram (NT)

Author: Randy Lovelace

Date: 02:46:47 06/21/00

Go up one level in this thread


On June 21, 2000 at 00:25:18, Josh Strayhorn wrote:

>On June 20, 2000 at 23:52:23, James Robertson wrote:
>
>>On June 20, 2000 at 22:29:17, Laurence Chen wrote:
>>
>>>On June 20, 2000 at 22:23:08, Laurence Chen wrote:
>>>
>>>[D]7R\8\1k1p3K\2pP1pr1\4Ppp1\8\6P1\8 b - -
>>>Black rook is trapped.  There's no compensation for the loss of the rook, the
>>>pawns are not able to queen fast enough.  Black is lost.
>>>Laurence
>>
>>Not so.... black plays 1. ... f3! and white must play 2. Rb8+ Kc7 and then his
>>rook must either move from the 8th rank, allowing the black rook to escape, or
>>leave it on the 8th and let the f pawn queen.
>>
>>James
>
>This position is drawn.  1. ...f3 loses to the simple 2. gxf3, after which
>White's rook has enough scope to stop the pawns.  1. ...Kg7 is the best move for
>Black, as after 2. Kxg7 fxe4 followed by ...f3 Black will have enough resources
>to force White to give back the rook, as a result of the distance of White's
>king from the pawns.  For instance:
>
>3. Rf8 f3  4. gxf3 gxf3  5. Rf4 c4  6. Rxe4 c3  7. Re1 Kc5  8. Rc1 Kxd5  9. Rxc3
>Ke4  10.  Kf6 f2  11. Rc1 Ke3

in this line maybe 3. ...exf3 is better for example
4. Rf4 c4 5. Rxg4 c3 6. Rg1 Kc5 7.Rf1 Kxd5 8. Rxf3 Kc4 9. Kf6 c2 10. Rf1 d5
11. Ke5 d4 12. Rf8 d3 wins

or
4. Kg6 c4 5. Kg5 c3 6. Rb8+ Kc5 7. Kxg4 f2 8. Rb1 c2 9. Rc1 Kxd5 10. Kf3 Kd4
11. Kxf2 Kd3 12. Rh1 Kd2 13. Kf3 d5 14. Rh2+ Kd3 15. Rh1 d4 16. Re1 Kc3 wins

It probably is a draw after 1. exf5 though

Randy Lovelace



This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.