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Subject: Re: Here's two difficult positions for your program

Author: Mark Young

Date: 15:10:29 09/09/99

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On September 09, 1999 at 17:07:28, Howard Exner wrote:

>On September 09, 1999 at 13:03:13, Hans Havermann wrote:
>
>>On September 09, 1999 at 07:29:34, Howard Exner wrote:
>>
>>>>1. 8/8/8/1k3p2/p1p1pPp1/PpPpP1Pp/1P1P3P/QNK2NRR w - - white wins
>>
>>>1. Kd1 Kb6 2. Rg2 Kc6 3. Re2 Kb6 4. Rg1 Kc6 5. Rgg2 Kb6 6. Ke1 Ka6 7. Kf2
>>>Kb6 8. Re1 Ka6 9. Rc1 Kb6 10. Ke1 Ka6 11. Re2 Kb6 12. Kd1 Ka6 13. Re1 Kb6
>>>14. Rc2 Ka6 15. Kc1 Kb6 16. Qa2 bxa2 17. b4 a1=Q 18. Rb2 Kb5 19. Rd1 Kb6
>>
>>17. … dc 18. Kb2 cb=Q+ 19. Rxb1 ab=Q+ 20. Kxb1 will delay the inevitable.
>
>These types of positions really highlight the thinking between man
>and machine. Computers just calculate from the starting position while we
>at times work backwards to "look deeply". The only way for white to win
>is the eventual Qa2 (threatening Qxb3). So all that's left is to manoevre the
>white rooks and king into a winning position before the Qa2 move. It's also
>interesting how humans would not spend any time considering  captures of the
>rooks by the black pawns.

I agree....this type of position makes a computer look very bad. Lucky for them
this type of setup is not to common. :)



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