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Subject: Re: Test positions for computer programs

Author: blass uri

Date: 11:20:45 10/23/98

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On October 23, 1998 at 11:27:38, Mark Young wrote:

>On October 23, 1998 at 00:09:37, blass uri wrote:
>
>>
>>
>>>
>>>[Event "summer-tournament"]
>>>[Site "k6/200 40/120"]
>>>[Date "1998.10.19"]
>>>[Round "11"]
>>>[White "Wchess 1.04"]
>>>[Black "ChessTiger 11.2"]
>>>[Result "1-0"]
>>>
>>>1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 d5 5. Nxe5 Be7 6. Nd2 Nxd2 7.
>>>Bxd2 Nc6
>>>8. Nxc6 bxc6 9. O-O O-O 10. Qh5 g6 11. Qh6 Re8 12. Rfe1 Rb8 13. b3 Be6??
>>
>>first test position for computer program(avoid Be6)
>>>14. c3??
>>
>>Second test position for programs(find Rxe6)
>>14... c5??
>>
>>Third test position(do something against Rxe6 for example Bf8)
>>
>>Uri
>>
>Hard positions,
>
>           Fritz 5                 CM6000                   Rebel 10
>test 1  Played c5 at 12:30     Played c5 at 58:36      could not find >8hr
>
>test 2  Played Rxe6 at 4:02    played d3xg6 at 6:01    could not find
>
>test 3    0:00                    0:00                 could not find
>
>I hope I did the position correctly. If not post the positions in epd.
>Rebel 10 could not solve the tests at all, because Rebel 10 thinks that the sac
>leads to a draw all the way up to move 19. CM6000 in test 2 played d3xg6 which
>also looks winning, if not post and I will keep searching the position.

I agree that d3xg6 also looks winning but I think it is not so simple after hxg6
Rxe6 Bf8(a move I found because taking the rook is losing).

White has a clear advantage but Rxe6 is better because it is more than 1.xx
advantage after some moves

Uri




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