Author: Kolss
Date: 03:48:19 11/12/05
Go up one level in this thread
On November 12, 2005 at 01:19:04, J. Wesley Cleveland wrote:
>I found this position in informant39.pdf at The Chess Cafe. Finding the best
>move is not hard, but getting a winning score from the position is very
>dificult.
>[D]2rqr1kb/pp1bpp2/3p2pB/3N3n/3NP2P/1B3P2/P1P5/1K1Q2R1 w - - 0 1
>
>You can see the analysis at http://www.chesscafe.com/text/informant39.pdf
>
>I think the problem is correct, but I can't prove it.
Hi,
For what it's worth, here is some output of a development version of Ikarus. It
finds the correct move after 17 seconds (P4-2.4 GHz, 256 MB Hash), a positive
score after 3 minutes, and a clear advantage after 18 minutes:
11(31).01 00:00:11.7 -3.15 1. Nf4
11(38).02 00:00:17.2 -2.85++ 1. Rxg6+! Kh7 2. Rg5
11(38).02 00:00:18.8 -0.35++ 1. Rxg6+!
11(38).02 00:00:23.0 -0.01 1. Rxg6+ Kh7 2. Rg5 Nf6 3. Nxf6+
12(40).01 00:00:32.1 +0.00 1. Rxg6+ Kh7 2. Rg5 Kxh6 3. Qc1 e6 4.
Rf5+ Kg6 5. Qg1+ Kh6 6. Qc1+
15(47).01 00:03:03 +0.30++ 1. Rxg6+!
15(47).01 00:03:24 +0.30 1. Rxg6+ Kh7
16(51).01 00:07:30 +0.60++ 1. Rxg6+!
16(51).01 00:12:09 +0.94 1. Rxg6+ Kh7 2. Rg5 Kxh6 3. Qd2 e6 4.
Ne2 exd5 5. Rxd5+ Kg7 6. Rg5+ Kh7 7. Rxh5+
17(51).01 00:18:10 +1.24++ 1. Rxg6+!
17(52).01 00:25:12 +1.24 1. Rxg6+ Kh7 2. Rg5 Kxh6
18(61).01 01:13:15 +1.53 1. Rxg6+ Kh7 2. Rg5 Kxh6 3. Nf5+ Bxf5 4.
Qd2 e5 5. Rxf5+ Kg7 6. Qg2+ Kf8 7. Rxh5 Bf6 8. Rh6 Bg7 9. Rh7
19(60).01 02:10:28 +1.87++ 1. Rxg6+!
Best regards - Munjong.
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