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Subject: Re: Test position

Author: John Merlino

Date: 14:19:13 10/26/04

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On October 26, 2004 at 15:13:41, Mikael Bäckman wrote:

>In game vs WimpC on ICC, I reached this position:
>
>[D]3qkbr1/1pp1p1pp/n7/1n1pNb2/3P4/rPB2NP1/5PBP/2R1QRK1 w - - 4 17
>
>I think Nh4 is best here. The bishop has no better place than c8 to go to and
>then white can continue with Qe2 attacking on the kingside.
>
>Chepla can't get a good score for Nh4 in 10 minutes. I'm guessing Cheplas
>problem here is king safety evaluation.

CM9_SKR on an AMD 2500 says:

Time	Depth	Score	Positions	Moves
0:00	1/3	0.36	1491		17.Nh4 Be6 18.Nc4
0:00	1/4	1.11	4611		17.Nh4 Bc8 18.Qe2 Nxc3 19.Rxc3
0:00	1/5	0.94	12692		17.Nh4 Bc8 18.Qe2 Nxc3 19.Rxc3
					g6 20.Rd1
0:00	1/6	0.59	34825		17.Nh4 Bc8 18.Qe2 Nxc3 19.Rxc3
					g6 20.Rfc1 c6
0:00	1/7	0.59	114643		17.Nh4 Bc8 18.Qd1 Nxc3 19.Rxc3
					g6 20.Qe2 c6 21.Rd1
0:01	1/8	1.06	282347		17.Nh4 Bc8 18.Qe2 Nxc3 19.Rxc3
					g6 20.Qb5+ c6 21.Bxd5 e6
0:03	1/9	0.69	623830		17.Nh4 Bc8 18.Qe2 Nxc3 19.Rxc3
					g6 20.Re1 Bg7 21.Qb2 Ra5 22.Rcc1
0:09	1/10	0.88	2095406		17.Nh4 Bc8 18.Ra1 e6 19.Rxa3 Bxa3
					20.Nhf3 Nxc3 21.Qxc3 Be7 22.Ra1 c5
0:26	1/11	0.82	5779505		17.Nh4 Bc8 18.Ra1 e6 19.Rxa3 Bxa3
					20.Nhf3 c5 21.Ba5 b6 22.Bc3 cxd4
					23.Nxd4
0:39	1/11	0.90	8725726		17.Qe2 Rxb3 18.Ba1 Nd6 19.Nh4 Be6
					20.Qc2 Ra3 21.Qxh7 g6 22.Nhxg6 Bg7
1:17	1/12	0.95	17304571	17.Qe2 Rxb3 18.Ba1 Qd6 19.Nh4 Be6
					20.Qh5+ g6 21.Qxh7 Rg7 22.Qh6 Rg8
					23.Qd2 g5
1:40	1/12	1.00	22779410	17.Nh4 Bc8 18.Qe2 Rxb3 19.Ba1 g6
					20.Rb1 Rxb1 21.Rxb1 Na7 22.Qf3
					Rg7 23.Qxd5 Qxd5 24.Bxd5 c6
3:40	1/13	1.35	51180182	17.Nh4 Bc8 18.Qe2 Rxb3 19.Qc2 Rxc3
					20.Qxh7 Qd6 21.Qxg8 Qe6 22.Qh8
					Rxc1 23.Nhg6 Qf5 24.Rxc1 Nxd4 25.Qxf8+
					Qxf8 26.Nxf8 Kxf8 27.Bxd5
7:59	2/14	1.90	114364847	17.Nh4 Bc8 18.Qe2 Rxb3 19.Qc2 Rxc3
					20.Qxh7 Qd6 21.Rxc3 Nxc3 22.Qxg8
					Ne2+ 23.Kh1 Qe6 24.Qh7 Nxd4 25.Qh5+
					Kd8 26.Nhg6 Qf6 27.Nxf8 Qxf8 28.Bxd5
20:16	3/15	1.80	303130806	17.Nh4 Bc8 18.Qe2 Rxb3 19.Qc2 Rxc3
					20.Qxh7 Qd6 21.Rxc3 Nxc3 22.Qxg8
					Ne2+ 23.Kh1 Qe6 24.Qh7 Nxd4 25.Qh5+
					Kd8 26.Nhg6 Nf5 27.Rd1 Nb4
1:06:15	4/16	1.86	1030528713	17.Nh4 Bc8 18.Qe2 Rxb3 19.Qc2 Nxc3
					20.Bf3 Ne4 21.Bxe4 Rxg3+ 22.fxg3
					dxe4 23.Qa4+ c6 24.Nxc6 bxc6 25.Qxc6+
					Bd7 26.Qxa6 g6 27.Rce1 Bh3

jm



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