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Subject: Re: Another bishop and rook ending

Author: John Merlino

Date: 16:20:09 02/25/01

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On February 25, 2001 at 17:01:25, Chessfun wrote:

>
>On checking the pgn of game 10 of my Valentines Tourney
>between Fritz 6 (12-16-2000) and Junior 6a, I came across
>the following ending.
>
>This is the position after 65....h5
>
>[D]8/5r2/6k1/3R1p1p/5P1p/3B1K2/8/b7 w
>
>Fritz white played 66. Rxf5 eval as -0.28/14, then the very following
>move scored -5.09/17. So at some point it must have seen that the resultant
>position after the rook comes off is drawn to have played 66. Rxf5. But then
>later scores it as a large -.  As can be seen from the pgn's Junior for a long
>time 70 odd moves felt itself as more than +5.00 wheras Fritz 6 after the rook
>came off knew it was drawn.
>
>Junior's pgn followed by Fritz 6 pgn.
>Note; Junior's pgn scores show - minus as it is black.
>
>Sarah.

CM8000 also sees it as a "draw":

Time	Depth	Score	Positions	Moves
0:00	4/6	-0.08	22258		1. Rxf5 Rxf5 2. Bxf5+ Kxf5 3. Kg2
					Kxf4
0:00	5/7	-0.08	70149		1. Rxf5 Rxf5 2. Bxf5+ Kxf5 3. Kg2
					Kxf4
0:02	6/8	-0.08	220965		1. Rxf5 Rxf5 2. Bxf5+ Kxf5 3. Kg2
					Kxf4
0:08	7/9	-0.08	861334		1. Rxf5 Rxf5 2. Bxf5+ Kxf5 3. Kg2
					Kxf4 4. Kh2 Bf6
0:19	8/10	-0.08	2089741		1. Rxf5 Rxf5 2. Bxf5+ Kxf5 3. Kg2
					Kxf4 4. Kh2 Bf6
0:59	9/11	-0.08	6317424		1. Rxf5 Rxf5 2. Bxf5+ Kxf5 3. Kg2
					Kxf4 4. Kh2 Bf6

jm




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