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Subject: Re: Model Game for Testing Programs....... Position at 21

Author: Chessfun

Date: 14:44:04 03/26/00

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On March 26, 2000 at 17:38:25, Chessfun wrote:

>On March 25, 2000 at 17:30:42, Djordje Vidanovic wrote:
>
>>Hello,
>>
>>My very good friend IM Zoran Ilic (2400)came to my place today for our regular
>>Saturday blitz match.  Afterwards we went through some of his games and he
>>pointed out that the following game could be a very good test for chess
>>programs.  Please take a look as many of the positions that arise are excellent
>>tests.  Zoran played this game with typical human visionary depth and I doubt
>>that any program will be able to follow in his footsteps. (BTW, this evening
>>Zoran played a short blitz match (4 min + 2 sec inc) against Deep Junior on my
>>dual board, 2 x PII-400, and lost 3.5 - 1.5)
>>
>>
>>OK, please start with the following, White to move, 21.e4!!
>>
>>
>>[D]r3qr1k/pb3pnp/1pp5/3p1p2/7Q/P1N3PB/1P2PP1P/3RR1K1 w - - 0 21
>>
>>
>>then try your program with 22. Nxe4!!:
>>
>>
>>[D]r3qr1k/pb3pnp/1pp5/3p4/4p2Q/P1N3PB/1P3P1P/3RR1K1 w - - 0 22
>>
>>
>>Perhaps you could do the same with the rest of the game, you will surely find it
>>instructive.
>>
>>
>>Event "?,?"]
>>[Site "Montpellier"]
>>[Date "1983.??.??"]
>>[Round "??"]
>>[White "Ilic Zoran"]
>>[Black "Meinsohn Francis"]
>>[Result "1-0"]
>>[ECO "E12"]
>>[PlyCount "29"]
>>
>>1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 6. cxd5 exd5 7. g3 Be7
>>8. Qa4+ c6 9. Bg2 O-O 10. O-O Na6 11. Ne5 Qe8 12. Bg5 Nc7 13. Rfe1 Ne6
>>14. Bxf6 Bxf6 15. Rad1 Nxd4 16. Ng4 Ne6 17. Nxf6+ gxf6 18. Qg4+ Kh8 19. Qh4
>>f5 20. Bh3 Ng7 21. e4 fxe4 22. Nxe4 dxe4 23. Rxe4 Qb8 24. Qh6 Rd8 25. Bd7
>>Kg8 26. Qf6 h5 27. Re5 Qxe5 28. Qxe5 c5 29. Qe7 1-0
>>
>>
>>***  DjordjeNew position
>
>
>r3qr1k/pb3pnp/1pp5/3p4/4p2Q/P1N3PB/1P3P1P/3RR1K1 w - - 0 1
>
>Analysis by Little Goliath 2000 v2.5:
>1.Qf6 Bc8 2.Bxc8 Qxc8 3.f3 exf3 4.Rf1 Qe6 5.Qxf3
>  -+  (-1.43)   Depth: 8   00:00:04  664kN
>1.Qf6 Bc8 2.Bxc8 Qxc8 3.f3 exf3 4.Rf1 Qe6 5.Qxf3
>  -+  (-1.43)   Depth: 9   00:00:06  1833kN
>1.Qf6 Bc8 2.Bxc8 Qxc8 3.f3 exf3 4.Qxf3 Qf5 5.Qxf5 Nxf5 6.Re5
>  µ  (-1.30)   Depth: 9   00:00:12  1833kN
>1.Qf6 Bc8 2.Bxc8 Qxc8 3.f3 exf3 4.Qxf3 Qf5 5.Qxf5 Nxf5 6.Re5
>  µ  (-1.30)   Depth: 10   00:00:19  7269kN
>1.Qf6 Bc8 2.Bxc8 Qxc8 3.f3 exf3 4.Re3 Qh3 5.Rxf3 Qe6 6.Qd4 f6
>  -+  (-1.44)   Depth: 10   00:00:27  7269kN
>1.Qf6 Bc8 2.Bxc8 Qxc8 3.f3 exf3 4.Re3 Qh3 5.Rxf3 Qe6 6.Qd4 f6
>  -+  (-1.44)   Depth: 11   00:00:47  16980kN
>1.Qf6 Bc8 2.Bxc8 Qxc8 3.f3 exf3 4.Re3 Rb8 5.Qxf3 Qf5 6.Qxf5 Nxf5 7.Re5
>  µ  (-1.38)   Depth: 11   00:01:07  16980kN
>1.Nxe4
>  µ  (-1.27)   Depth: 11   00:01:44  16980kN
>1.Nxe4 dxe4 2.Rxe4 Qb8 3.Qh6 Rd8 4.Bd7
>  µ  (-1.32)   Depth: 11   00:01:45  16980kN
>1.Nxe4 dxe4 2.Rxe4 Qb8 3.Qh6 Rd8 4.Bd7
>  µ  (-1.32)   Depth: 12   00:01:54  49512kN
>
>(Bird, Scarb 26.03.2000)

Sorry missed the first position
r3qr1k/pb3pnp/1pp5/3p1p2/7Q/P1N3PB/1P2PP1P/3RR1K1 w - - 0 21
This is much harder.
I would be surprised if any program finds e4 in less than 10 mins.
Thanks






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