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Subject: Re: Difficult endgame position (corrected analysis)

Author: Charlie GOLD

Date: 13:01:30 06/07/00

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On June 07, 2000 at 14:47:53, Enrique Irazoqui wrote:

>On June 07, 2000 at 13:55:38, Simon Finn wrote:
>
>>On June 07, 2000 at 13:46:29, Simon Finn wrote:
>>
>>>>>Interesting position, but is black forced to take from h6 (gxh6)? May be -Kc8
>>>>>is better? I think that black loses in all variations.
>>>> I think that black loses in all variations.
>>>
>>>Jouni's suggestion of 1..Kc8! looks good to me.
>>>[D]8/1k4p1/3pP3/pP5P/8/8/1r5P/3K4 w - - 0 1     IF IT IS WHITE TO MOVE SURELY P-E7 WINS FOR WHITE and IF IT IS BLACK TO GO FIRST THEN BLACK WINS IN SEVERAL WAYS.    CHARLIE
>>>
>>>After 1. h6 Kc8 2. h7 Rxh2 3. e7 Kd7 4. b6 Rxh7 5. b7
>>
>>Sorry - that should read:
>>
>>1. h6 Kc8 2. h7 Rxh2 3. e7 Kd7 4. b6 Rxh7 5 e8Q+ Kxe8 6. b7
>
>I don't think it works. 1.h6 Kc8 2. e7 Kd7 3. h7 Rxh2 4. b6 Rxh7 5. e8Q+ Kxe8 6.
>b7 Rh1+ 7. Kc2 Rh2+ 8. Kc3 Rh3+ 9. Kb2 Rh2+ 10. Ka3 then a4 and a5, and then the
>b pawn promotes.
>
>Enrique
>
>
>>and the following move-numbers are all of-by-one
>>
>>> (or 1. h6 Kc8 2. e7 Kd7 3. h7 Rxh2 4. b6 Rxh7 5. b7)
>>>
>>>Black can draw in two different ways:
>>>
>>>Either 5... Rh1+ 6. Kc2 Rh2+ 7. Kc3 Rh3+ 8. Kc2 Rh2+ with perpetual check
>>>(8. Kc4? Rh4+ and Rb4 wins for Black)
>>>
>>>Or 5... Rh6 6. b8Q+ Kf7 followed by ...d5 (unblocking the 6th rank)
>>>with a fortress draw.
>>>
>>>None of this would work if the White pawn on h2 were actually on h3 -
>>>is it possible that we have the wrong start position?
>>>
>>>Simon



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