Author: John Merlino
Date: 12:14:34 01/29/03
Go up one level in this thread
On January 29, 2003 at 14:18:35, John Merlino wrote:
>On January 28, 2003 at 21:27:40, Dann Corbit wrote:
>
>>On January 28, 2003 at 20:55:25, John Merlino wrote:
>>
>>>On January 28, 2003 at 19:04:47, Kurt Utzinger wrote:
>>>
>>>>Commented game is ready for replay and download on section "Special" on our
>>>>homepage Kurt & Rolf Chess at http://www.beepworld.de/members39/utzinger
>>>>Kurt
>>>
>>>Great comments! Here are a couple of comments on YOUR comments:
>>>
>>>8...d6 -- Indeed this is a rare position. In the Chessmaster database, there are
>>>only three games, and the only one of note is Shirov-Korneev, 1998, which
>>>continued:
>>>9.0-0 Nf6 10.Kh1 {!} h5 11.Bg5 Qc7 12.Qd7 Bd7 13.Rad1 Ne5 14.Be2 Bc6 15.f3 0-0-0
>>>16.Nb5 {!} axb5 17.cxb5 Be8 18.Rc1 Bc5 19.Nd4 Kb8 20.b4 b6 21.a4 h4 22.a5 {!}
>>>Nh5 {?} 23.Bxh4 g5 24.Qxg5 f6 25.Qe3 Qg7 {? -- CM9000 much prefers 25...Bxd4
>>>26.Qxd4 Qa7} 26.g4 {bxc5 also wins} Nf4 27.bxc5 Nxe2 28.Nxe2 {Nxe6 is much
>>>better and wins easily!} Rxh4 {?? -- loses instantly. bxc4 was probably the only
>>>fighting chance} 29.c6 Rc8 30.Qxb6+ Ka8 31.c7 {THREE brutal connected passed
>>>pawns just a few steps away from Black's open king! OUCH! White has a forced
>>>mate in 11 after this move....} 1-0
>>>
>>>16.Qh5 -- Chessmaster 9000 has a difficult time deciding on which move to play
>>>here. It does consider Qh5 for some time, but also might play c5!? depending on
>>>hardware and time control.
>>
>>Ruffian likes neither Qh5 nor c5:
>>
>>E:\programme\winboard\ruffian>ruffian -h 300M -T c:\tmp\qh5.epd -t 999 -p 999
>>Hash size 314572800
>>Ruffian 1.0.1
>>feature done=0
>>Loading configuration: ruffian.cfg
>>Warning: EGTB_HASH_SIZE changed, default=1048576, newvalue=8388608
>>Logfile: Tue Jan 28 18:08:47 2003
>>Total hash size 300M
>>Initializing tablebases: /programme/winboard/nalimov
>>Testing c:\tmp\qh5.epd, 999 seconds, extra ply 999
>>Testing: test 1 Solution: Qh5
>> 2bq1rk1/rp2nppp/3p4/3Np3/p1PnP3/3B4/PP1N1PPP/2RQR1K1 w - -
>> Depth Time Score Best line
>> 6--> 1.16 0.25 Nf3 Bg4 Be2 Bxf3 Bxf3 a3 b3 Nxd5 cxd5
>> 7/17 1.32 0.21 Nf3 Bg4 Be2 Nxe2+ Qxe2 a3 b3 Nxd5 cxd5 b6
>> 7--> 1.98 0.21 Nf3 Bg4 Be2 Nxe2+ Qxe2 a3 b3 Nxd5 cxd5 b6
>> 8/19 2.34 0.17 Nf3 Bg4 Be2 Bxf3 Bxf3 Nxd5 cxd5 Qb6 Qd2 Nxf3+ gxf3
>> 8--> 4.96 0.17 Nf3 Bg4 Be2 Bxf3 Bxf3 Nxd5 cxd5 Qb6 Qd2 Nxf3+ gxf3
>> 9/22 5.90 -0.03 Nf3 Bg4 Be2 Bxf3 Nxe7+ Qxe7 Bxf3 a3 b3 Rc8 Bg4
>> 9/22 6.01 x.xx Rc3
>> 9/22 8.00 0.13 Rc3 Nxd5 exd5 b6 Qh5 g6 Qh6 Bg4 f3 Bd7
>> 9--> 15.80 0.13 Rc3 Nxd5 exd5 b6 Qh5 g6 Qh6 Bg4 f3 Bd7
>> 10/22 18.57 0.12 Rc3 Nxd5 exd5 g6 Nf3 Bg4 Be2 Nxe2+ Qxe2 Qc7 Qe4 Bd7
>> 10/23 24.97 x.xx Be2
>> 10/23 25.18 0.13 Be2 a3 b3 Nxd5 cxd5 b6 Nf3 Nxf3+ Bxf3 Rc7 Rxc7 Qxc7
>> Qd2
>> 10/23 36.83 x.xx Re3
>> 10/23 42.40 0.14 Re3 Ra8 Bf1 Bd7 c5 Nxd5 exd5 Qc7 cxd6 Qxd6 Bc4
>> 10--> 52.88 0.14 Re3 Ra8 Bf1 Bd7 c5 Nxd5 exd5 Qc7 cxd6 Qxd6 Bc4
>> 11/25 1:28 0.14 Re3 a3 b4 Be6 Nf3 Nxf3+ Qxf3 Nc6 Be2 b6 b5 Nd4 Qh5
>> 11/28 2:08 x.xx Be2
>> 11/28 2:25 0.15 Be2 Nxd5 cxd5 Qb6 Bh5 Bd7 Nc4 Qa6 Bg4 b5 Bxd7 Rxd7
>> Nd2
>> 11--> 2:52 0.15 Be2 Nxd5 cxd5 Qb6 Bh5 Bd7 Nc4 Qa6 Bg4 b5 Bxd7 Rxd7
>> Nd2
>> 12/28 3:51 0.15 Be2 Nxd5 cxd5 Qb6 Bh5 Bd7 Nc4 Qa6 Bg4 b5 Bxd7 Rxd7
>> Nd2
>> 12--> 5:41 0.15 Be2 Nxd5 cxd5 Qb6 Bh5 Bd7 Nc4 Qa6 Bg4 b5 Bxd7 Rxd7
>> Nd2
>> 13/30 8:05 0.12 Be2 Nxd5 cxd5 a3 b4 f5 Bh5 g6 Be2 Rf7 Nf3 Rc7 Rxc7
>> Nxe2+ Qxe2 Qxc7
>> 13/31 11:18 x.xx Rc3
>> 13--> 16:09 0.12 Be2 Nxd5 cxd5 a3 b4 f5 Bh5 g6 Be2 Rf7 Nf3 Rc7 Rxc7
>> Nxe2+ Qxe2 Qxc7
>> 14... 16:09 1/42 Be2
>>
>>Time: 16:39, cpu 66.20%, nodes 324468931, nps 324774
>>Hash: 128M, used 99%, hits 22%
>>EGTB: probs 0, hits 0
>>
>>Best move: Be2 (0.12) Not solved (0/1)
>>
>>Summery: 0/1
>
>Fascinating. Obviously a very critical move! I think I'll ask my human friends
>(IM Waitzkin and GM Evans) what they think of the position. It would be nice to
>chat with them anyway....
>
>jm
There's another move to add to the list! I let CM9000 go a bit longer on my
humble P3-733, and after 15 minutes (about 4 minutes on top-end hardware) it
comes up with b4?! So, I think that makes the following list of candidate moves:
Qh5, c5, b4, Rc3, Re3, Be2
Quite complex!
jm
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