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Subject: Re: Testposition - The Enchanted Castle CM8000 2.Rxd7

Author: Enrique Irazoqui

Date: 09:55:49 03/04/01

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On March 04, 2001 at 12:35:49, Werner Schuele wrote:

>On March 04, 2001 at 08:04:30, Enrique Irazoqui wrote:
>
>>On March 04, 2001 at 07:57:21, Andreas St. wrote:
>>
>>>On March 04, 2001 at 06:09:44, Sune Larsson wrote:
>>>
>>>>
>>>>  [D]4k3/3nn3/1p2pbp1/pP1p1pBp/P2P1P1P/4KPP1/4B3/2R5 w - - 0 1
>>>>
>>>>  Hilse-Kunstmann, Hamburg 1921
>>>>
>>>>  The story goes that the black player just had realized, that in
>>>>  the long run he would lose this game. It was an important match
>>>>  and he had stubbornly defended his difficult position, being an
>>>>  exchange down, when a sudden touch of magic and inspiration entered
>>>>  his mind... So, he played Kd8-e8, wrote down the move in his
>>>>  score sheet, and shook his head. The following deep sigh convinced
>>>>  the white player that his victory was close. We now have the
>>>>  position in the diagram above.
>>>>
>>>>  Here white quickly played 1.Rc7 and glanced at his more and more
>>>>  depressed opponent. Black sighed once more and replied with 1.-Kd8.
>>>>  Yes, in lost positions additional mistakes come easy, white thought,
>>>>  and played his decisive 2.Rxd7+?. Instead of resigning, the black
>>>>  player now smiled, quickly played 2.-Kxd7 and ordered two sandwiches
>>>>  with Wurst and a cup of coffee...
>>>>
>>>>  Test: Does your program avoid the trap 1.Rc7 Kd8 *2.Rxd7+?*
>>>>        This position is now a draw.
>>>>
>>>>  Sune
>>>
>>>
>>>Hi,
>>>
>>>Chessmaster (Athlon 1.2) plays after 1 min:
>>>
>>>1. g4 Kd8 2.Kd3 Ke8 3.Bxf6 Nxf6 4.g5 Score +3.50
>>>
>>>after 2 to 5 min:
>>>
>>>1. g4 Kd8 2.Rc2 Bxg5 3.hxg5 Nf8 4.Rc1 hxg4 5.fxg4 Score +3.52
>>>
>>>Good line?
>>>
>>>CM 6555 never thoughts about 1.Rc7!
>>>
>>>Greets AS
>>
>>Deep Fritz and Deep Shredder also play 1.g4. But what does CM play after 1.Rc7
>>Kd8?
>>
>>Enrique
>CM8000 plays 3.Rxd7 with a high score around +5 after 1h, Fritz6 plays 3.Lxf6
>Sc8 4. Kd3 Nd6 5.Bd1 Nc4 6.Bb3 Nd6 7.Be5 Ke7 with a score of 3.78 on death 31.
>Can you show me the correct line of black?
>Werner

Black doesn't have to do anything. For instance, black can keep walking with its
king. It is white who can't get through.

Enrique



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