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Subject: Re: Challenge position for engines! (Lots of luck)

Author: Dann Corbit

Date: 20:56:51 03/04/02

Go up one level in this thread


On March 04, 2002 at 17:43:29, Albert Silver wrote:

>The following position occurred in Spassky-Beliavsky, Reykjavik, 1988
>
>[D]2b1qrk1/5p1p/pBn3p1/1p2p3/4P2N/bBP1Q3/P4PPP/3R2K1 w - -
>
>Spassky found a tremendous move 25.Nxg6!! and won the game. I don't think any
>engines will have much luck with it but feel free to try it. I've analyzed it in
>detail and can verify that it is the strongest move and correct, so as a further
>challenge, see if you can find the *strongest* continuation after the possible
>defense: 25...hxg6 26.Qh6 Be6!?

Chessmaster 8000:

Time	Depth	Score	Positions	Moves
0:00	2/6	0.77	36615		1. Nf3 Be6 2. Bd5 Qd7 3. c4 Be7
					4. Bc5
0:01	3/7	0.61	139848		1. Nf3 Qe7 2. Bd5 Bb7 3. Qd2 Rc8
					4. Bb3 Bc5
0:02	3/7	0.68	246331		1. Bd5 Ne7 2. Nf3 Nxd5 3. exd5
					e4 4. Re1 Bf5
0:03	3/7	0.76	385014		1. c4 Bg4 2. cxb5 axb5 3. f3 Bc8
					4. Bxf7+ Qxf7 5. Qxa3 Qf6
0:05	3/8	0.78	643332		1. c4 Nd4 2. Bxd4 exd4 3. Qxd4
					Qe7 4. Nf3 Bc5 5. Qc3
0:14	4/9	0.85	1972984		1. c4 Qe7 2. Nf3 Bb7 3. cxb5 axb5
					4. Qd3 Ba6 5. Qd2 Bb7
0:55	4/10	0.79	8105767		1. c4 Nd4 2. Bxd4 exd4 3. Qxd4
					Qe7 4. Nf3 Bc5 5. Qd3 Bb7 6. cxb5
					axb5
1:48	4/10	0.83	16969238	1. Bd5 Ne7 2. c4 Nxd5 3. exd5 Be7
					4. Nf3 bxc4 5. Qxe5 f6
3:08	5/11	0.76	28671849	1. Bd5 Ne7 2. c4 Nxd5 3. exd5 Be7
					4. Nf3 bxc4 5. Nxe5 Qa4 6. Rc1
6:13	5/11	0.83	60229938	1. c4 Nd4 2. Bxd4 exd4 3. Qxd4
					Qe7 4. Nf3 Bg4 5. cxb5 axb5 6.
					Qe3 Bc5 7. Qf4
8:17	5/11	0.93	80205484	1. Nf3 Qe7 2. c4 bxc4 3. Bxc4 a5
					4. Bd5 Bb7 5. Rd3 Bb4 6. a3 Bd6
					7. Rc3



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