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Subject: Re: Challenge position for engines! (Lots of luck)

Author: Ed Schröder

Date: 08:43:52 03/05/02

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On March 05, 2002 at 09:58:49, Albert Silver wrote:

>>>>Yace also likes f5 and has Rh3 in the main line so it seems that finding a
>>>>better move than Rh3 is not easy.
>>>>
>>>>The question is if Rh3 is winning.
>
>AFAIK it is winning also, though there is still fight in the position, but it
>isn't the strongest continuation. As I posted below, Rg3! first is strongest,
>and after Rf6 then Rh3 Kf7 Qh7+ Kf8 exf5!
>
>                                          Albert


Follwing your analysis:

1. Rg3 Rf6 2. Rh3 Kf7 3. Qh7+ Kf8 4. exf5 Bxb3 5. axb3

I get 5...Ne7 with only a small positive score for white. Nevertheless white
looks winning.

00:00:18.5	-1,14	11	13666080	Ne7 Qh8+ Ng8 Rh7 Rf7 b4
00:00:32.7	-1,10	12	24855984	Ne7 Qh8+ Ng8 Rh7 Rf7 b4
00:01:33.5	-1,02	13	73184540	Ne7 Qh8+ Ng8 b4 Qf7 Rd3 Rxb6 Rd8+
00:03:02.0	-1,30	14	144120274	Ne7 Qh8+ Ng8 b4 Qf7 Rd3 Rxb6 Rd8+
00:05:46.2	-1,30	14	276080961	Rxf5
00:06:06.7	-1,02	13	73184540	Ne7 Qh8+ Ng8 b4 Qf7 Rd3 Rxb6 Rd8+
00:13:54.6	-1,39	15	659400020	Ne7 Qh8+ Ng8 b4 Qf7 Rd3 Rxb6 Rd8+

Ed



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