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Subject: Re: Test Position ... more

Author: Dan Ellwein

Date: 18:48:57 04/26/04

Go up one level in this thread


On April 25, 2004 at 18:22:46, Johan de Koning wrote:

>On April 24, 2004 at 18:21:31, Johan de Koning wrote:
>
>>On April 24, 2004 at 15:28:13, John Merlino wrote:
>>
>>>On April 23, 2004 at 20:05:51, Johan de Koning wrote:
>>>
>>>>On April 23, 2004 at 16:52:42, John Merlino wrote:
>>>>
>>>>>This position is from The King v Diep in the recent ICT4.
>>>>>
>>>>>[D]r3k2r/pp1bppbp/2n3p1/8/8/2N1B1P1/PP2PPBP/2RK3R w kq - 0 13
>>>>>
>>>>>The Chessmaster 9000 database has two games with this position, played by top
>>>>>GMs (Andersson v Leko in 1996 and Smirin v Alterman in 1998). In both cases,
>>>>>White played f4 and won.
>>>>>
>>>>>The King, however, chose Kc2 and is soon forced over to a3.
>>>>
>>>>Actually I cheered when TK switched to Kc2 at the last minute (make that
>>>>the last second :-). Both a3 and a1/b1 look better then e1, superficially.
>>>>Little did I know what lied ahead though. :-(
>>>>
>>>>... Johan
>>>
>>>Did TK switch from f4 or Ke1?
>>
>>I don't recall seeing f4 in any of the PVs.
>>(Will correct tomorrow, if needed.)
>
>So much for my memory.
>It switched from f4 to Kc2.
>In 3-best mode it lists Kc3, f4, and h4 within a few cents.
>(on slower hardware)
>252.33  45M289 03/12 +0.07 Kc2,Bf5+ Kb3,0-0 Rhd1,Rfd8 Rxd8+,Rxd8 Bxc6,bxc6 ...
>305.83  54M957 03/12 -0.01 f4,Rc8 Kd2,0-0 Rhd1,Bf5 Ke1,e5 fxe5,Bxe5 Kf2,Rfe8
>383.66  68M885 03/12 +0.03 h4,Rd8 Ke1,h5 Kf1,0-0 Kg1,Be6 Kh2,Rfe8 Rhe1,Rd7
>
>... Johan

Hi Johan

just for the record CM9_OffSet likes Kc2 in this position...

P3/850

Time	Depth	Score	Positions	Moves
----	----	----	----		----
0:00	1/3	0.48	4930		1.Nb5 Rd8 2.Nc7+ Kf8
0:00	1/3	0.49	5409		1.f4 O-O 2.Rf1 Rfc8
0:00	1/4	0.49	8181		1.f4 O-O 2.Rf1 Rfc8
0:00	1/4	0.55	17208		1.Nd5 Rd8 2.b3 Kf8
0:00	1/5	0.29	36913		1.Nd5 Rd8 2.Kc2 Bf5+ 3.Kb3 Nd4+
					4.Bxd4 Bxd4
0:00	1/5	0.53	47262		1.Nb5 Rd8 2.Kc2 O-O 3.Nxa7 Bf5+
					4.Kb3
0:01	1/6	0.68	90706		1.Nb5 Rd8 2.Ke1 a5 3.f4 Bxb2
0:02	1/7	0.29	219503		1.Nb5 O-O 2.Nxa7 Nxa7 3.Bxb7 Rad8
					4.Ke1 Bxb2
0:03	1/7	0.42	329111		1.Nd5 Rd8 2.Bd2 Kf8 3.Bc3 Nd4 4.Bb4
					Nf5
0:07	1/7	0.60	632608		1.Kc2 Bf5+ 2.Be4 Bxe4+ 3.Nxe4 f5
					4.Nc5 O-O-O 5.Kb1 e5
0:10	1/8	0.66	900983		1.Kc2 O-O 2.Kb1 Rfc8 3.Rhd1 Bf5+
					4.Be4 Bg4 5.f4 e6
0:22	1/8	0.70	1997546		1.Na4 Bf5 2.Ke1 Rc8 3.b3 Bd7 4.Nc5
					Bb2 5.Rd1
0:30	1/9	0.68	2770742		1.Na4 Bf5 2.Rg1 Rc8 3.Bxc6+ bxc6
					4.Ke1 Rc7 5.g4 Be6
0:38	1/9	0.82	3570621		1.Kc2 O-O 2.Rhd1 Bf5+ 3.Be4 Bg4
					4.Kb1 Rfc8 5.f3 Be6 6.Nd5
0:51	1/10	0.78	4873139		1.Kc2 O-O 2.Rhd1 Bf5+ 3.Be4 Bh3
					4.Kb1 Rfc8 5.f4 Be6 6.Nb5
2:16	1/11	0.87	12968586	1.Kc2 O-O-O 2.Kb1 Kb8 3.Rhd1 Rhe8
					4.f4 Nb4 5.Ne4 Be6 6.Rxd8+ Rxd8
5:07	1/12	0.95	29377143	1.Kc2 O-O 2.Rhd1 Be6 3.Kb1 Rfc8
					4.Nd5 Bf5+ 5.Ka1 Kf8 6.Nf4 Kg8
					7.Bxc6 bxc6
13:41	2/13	1.04	78101462	1.Kc2 O-O 2.Rhd1 Bg4 3.Kb1 Rfc8
					4.Bc5 Kf8 5.f4 Bf5+ 6.Be4 b6 7.Bxf5
					gxf5 8.Be3 e6
best regards,

Dan





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