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Subject: Re: Testposition - Tactics (CM8000 Results)

Author: Vincent Diepeveen

Date: 15:56:03 07/11/01

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On July 11, 2001 at 18:08:56, John Merlino wrote:

>On July 11, 2001 at 12:52:30, Sune Larsson wrote:

>> [D]r5nr/pp3kpp/2pb4/3pn1P1/8/2N1B2B/PPP2P1P/2KRR3 w - - 0 20
>>
>> IM Berg,Emanuel 2496 - GM Akesson,Ralf 2481

>Well, that was annoying. After a long think (almost 5 minutes), CM8000 came up
>with Nxd5. Then, 14 seconds later, it switched to a move that it hadn't thought
>"best" for over 4 minutes! <sigh> After that, it was a long time before it came
>around again.

CM8k is doing in fact much better as other posts so far as it
finds the move for the right reason (Bf1). See its mainline.

>So, if the time control and the hardware were JUUUUUST right....
>
>Time	Depth	Score	Positions	Moves
>0:00	1/4	1.08	5428		20. Ne4 Bb4 21. c3 dxe4 22. cxb4
>0:00	2/5	0.96	38290		20. Ne4 Bb4 21. Nd2 Ne7 22. f4
>0:01	2/6	0.98	74134		20. Ne4 Be7 21. Nd2 h6 22. gxh6
>					Nxh6 23. f3
>0:03	3/7	0.98	198157		20. Ne4 Be7 21. Nd2 h6 22. gxh6
>					Nxh6 23. f3
>0:10	3/8	0.74	658438		20. Ne4 Bb4 21. Nd2 Bxd2+ 22. Bxd2
>					Nf3 23. Re3 Nxd2 24. Rxd2 Re8
>0:34	4/9	0.64	2422711		20. Ne4 Bb4 21. Nd2 h6 22. Bd4
>					Bxd2+ 23. Rxd2 Nf3 24. Re6 hxg5
>0:45	4/9	0.74	3150143		20. Re2 h6 21. Ne4 Be7 22. Nc5
>					Bxc5 23. g6+ Nxg6 24. Bxc5 Nf4
>1:55	5/10	0.49	8371693		20. Re2 h6 21. f4 Nc4 22. Rf1 Nxe3
>					23. Rxe3 g6 24. Be6+ Kg7 25. Ne2
>					Ne7
>4:40	5/10	0.56	21322468	20. Nxd5 cxd5 21. Rxd5 Nc4 22.
>					Bc5 Bf4+ 23. Kb1 Kg6 24. Rd7 Rc8
>					25. Bxa7 Nd2+ 26. Ka1 Rxc2 27.
>					Rxb7 Bxg5
>4:54	5/10	0.61	22437955	20. Ne4 Bb4 21. Nd2 h6 22. gxh6
>					Nxh6 23. Rg1 Bxd2+ 24. Bxd2 Nf3
>					25. Rg3 Nxd2 26. Rxd2
>8:38	6/11	0.60	39383091	20. Ne4 Bb4 21. Nd2 h6 22. gxh6
>					Nxh6 23. Rg1 Ng8 24. Rg3 Nf6 25.
>					f4
>15:16	6/11	0.92	71501077	20. Nxd5 cxd5 21. Rxd5 Nc4 22.
>					Bf1 Nxe3 23. Rxe3 Bxh2 24. Rf5+
>					Kg6 25. Bd3 Bb8 26. Rd5+ Kf7 27.
>					Rd7+ Kf8 28. Rf3+ Ke8 29. Rxg7
>
>jm



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