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Subject: Re: Testposition: Ponomariov - Ivanchuk (Diagram) 1-0!

Author: John Merlino

Date: 12:58:30 01/16/02

Go up one level in this thread


On January 16, 2002 at 13:32:51, Eduard Nemeth wrote:

>First the game with my analyses:
>
>Ponomariov,R (2680) - Ivanchuk,V (2730) [C11]
>WCC, 2002
>
>1.e4 e6 2.d4 d5 3.Sc3 Sf6 4.Lg5 dxe4 5.Sxe4 Le7 6.Lxf6 Lxf6 7.Sf3 0-0 8.Dd2 Le7
>9.0-0-0 Dd5 10.Sc3 Da5 11.a3N [11.Se5 Lb4 12.Sc4 Lxc3 13.Sxa5 Lxd2+ 14.Txd2=]
>11...Sd7 12.Kb1 Db6 13.De3 Sf6 14.Se5 Td8 15.Lc4 Ld7 16.Lb3 Le8 17.The1 Lf8
>18.g4 Sd5 19.Df3 c6 [19...Sxc3+ 20.Dxc3²] 20.Se4 Dc7? 21.c4! Se7?? [21...Sb6
>22.g5!! A) 22...Sd7 23.Sf6+!!+- (23.Sxd7± Lxd7 24.Sf6+!! gxf6 25.gxf6±)
>23...Sxf6 24.gxf6 g6 25.h4 c5 26.d5 exd5 27.cxd5 b5 28.h5; B) 22...c5 23.Sf6+!]
>22.Sg5 Sc8 23.c5!+- 1-0
>
>In my analyses is this Testpostition for Computers now:
>
>[D]r2r1bk1/ppqb1ppp/2p1p3/6P1/2PPN3/PB3Q2/1P3P1P/1K1RR

3 w - - 0 24
>
>White is move:
>24.Nf6+!!
>
>Find your program this move?
>
>Eduard

It takes a while on my PIII-600, but the default CM8000 personality does find
it:

Time	Depth	Score	Positions	Moves
0:00	1/3	0.32	1122		24.h4 Be8 25.Qe3
0:00	1/4	0.33	3241		24.h4 Qh2 25.h5 e5
0:00	2/5	0.24	16510		24.h4 Be8 25.Bc2 b5 26.Bb3 a5
0:00	2/5	0.29	25747		24.Bc2 Qb6 25.Qe3 Be8 26.h4
0:01	2/6	0.70	88338		24.Bc2 Be7 25.Qh5 g6 26.Qh6 Qf4
0:02	3/7	0.59	159772		24.Bc2 Be7 25.Qh5 g6 26.Qf3 Qxh2
					27.Nf6+ Kf8
0:08	3/8	0.88	510428		24.Bc2 Be7 25.Qh3 g6 26.Qf3 c5
					27.dxc5 Bc6 28.Nf6+ Kh8
0:30	4/9	0.75	1935327		24.Bc2 Be7 25.Qh3 g6 26.Qf3 h6
					27.h4 hxg5 28.hxg5 e5
3:18	4/10	0.70	12750457	24.Bc2 Be7 25.Qh3 g6 26.Qf3 b5
					27.Bb3 bxc4 28.Bxc4 Qxh2 29.Nf6+
					Kg7 30.Nxd7 Rxd7 31.Qxc6
6:23	4/10	1.42	25164864	24.Nf6+ gxf6 25.gxf6 Bh6 26.Re5
					Qd6 27.Qg4+ Kh8 28.Qh4 Qf8 29.Rh5
					Qg8 30.Rxh6

jm



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