Author: Uri Blass
Date: 08:00:15 08/17/01
Go up one level in this thread
On August 16, 2001 at 16:07:52, Dieter Buerssner wrote: >On August 16, 2001 at 09:12:33, José Carlos wrote: > >>On August 16, 2001 at 06:02:19, Peter McKenzie wrote: >> >>>LambChop takes a while to avoid Ng3, it takes about 50sec to switch to b5 on my >>>1ghz machine. The switch to b5 occurs at depth 10. >>> >>>Interesting position. >> >> Yes it is. Averno sticks to Ng3. I let it think until ply 13 and the stopped. >>Can anyone, please, explain why your programs avoid Ng3? I mean, as a huma, I >>can see the danger, but what do strong programs see here to avoid Ng3? > >Yace also sticks to Ng3. After 1...Ng3 2. Qh2 Nh5 Yace cannot find a win for >white in some minutes. I also tried 3. f5 g3. Still Yace cannot find a win. Here is Deep Fritz's analysis Deep fritz prefers f5 Be5 after 15 minutes and not f5 g3 Depp Fritz's could not see a winning score for white after f5 g3 in the first 15 minutes and the score was only +0.97 for white New position [D]3qr1k1/pp1bppb1/3p2p1/2rN2Bn/2nNPPp1/1B6/PPP4Q/2KR3R w - - 0 1 Analysis by Deep Fritz: 3.Bxc4! µ (-1.09) Depth: 1/3 00:00:00 3.Bxc4! Rxc4 ³ (-0.66) Depth: 1/8 00:00:00 3.f5! ³ (-0.62) Depth: 1/14 00:00:00 3.f5! ³ (-0.44) Depth: 1/14 00:00:00 3.f5 g3 ³ (-0.59) Depth: 2/22 00:00:00 3kN 3.Qh4! ³ (-0.56) Depth: 2/22 00:00:00 3kN 3.Qh4! Kf8 ³ (-0.31) Depth: 2/22 00:00:00 4kN 3.Qe2! = (0.00) Depth: 2/22 00:00:00 5kN 3.Qe2 = (0.00) Depth: 3/3 00:00:00 5kN 3.Qe2 = (0.00) Depth: 4/4 00:00:00 6kN 3.Qe2 = (0.00) Depth: 5/5 00:00:00 12kN 3.Qe2 = (0.00) Depth: 6/6 00:00:00 19kN 3.f5! = (-0.12) Depth: 6/27 00:00:00 188kN 3.f5! g3 4.Qh4 Bxd4 5.Rxd4 g2 = (0.00) Depth: 6/30 00:00:00 297kN 3.f5 g3 4.Qh4 f6 5.fxg6 Rf8 6.Bxc4 Rxc4 7.Qxh5 = (0.19) Depth: 7/32 00:00:01 1158kN 3.f5 Be5 4.Qh4 f6 5.Be3 g3 6.Bxc4 Rxc4 7.fxg6 = (0.22) Depth: 8/33 00:00:05 3572kN 3.f5 g3 4.Qh4 f6 5.Be3 Qa5 6.fxg6 g2 7.Rhg1 ² (0.38) Depth: 9/33 00:00:13 9113kN 3.f5 g3 4.Qh4 Bf6 5.Bxf6 exf6 6.Ne2 g2 7.Rhg1 Na5 8.Rxg2 ² (0.56) Depth: 10/38 00:00:38 25364kN 3.f5 g3 4.Qh4 Bf6 5.Bxf6 exf6 6.Ne2 g2 7.Rhg1 Na5 8.Rxg2 Nxb3+ ² (0.56) Depth: 11/39 00:01:38 66183kN 3.f5 Be5 4.Qh4 Kg7 5.Qxg4 Nf6 6.Bxf6+ exf6 7.Bxc4 Rxc4 8.c3 ² (0.69) Depth: 12/40 00:05:44 232382kN 3.f5 Be5 4.Qh4 Kg7 5.c3 Bg3 6.Qxg4 Ne5 7.Qe2 b5 ² (0.69) Depth: 13/43 00:13:59 567231kN (Blass, Tel-aviv 17.08.2001) New position [D]3qr1k1/pp1bppb1/3p2p1/2rN1PBn/2nNP3/1B4p1/PPP4Q/2KR3R w - - 0 1 Analysis by Deep Fritz: 4.Bxc4-- -+ (-2.59) Depth: 1/6 00:00:00 4.Bxc4-- gxh2 -+ (-6.50) Depth: 1/16 00:00:00 4.Qxh5! -+ (-6.41) Depth: 1/16 00:00:00 4.Qxh5! gxh5 -+ (-5.91) Depth: 1/16 00:00:00 4.Nxe7+! -+ (-5.62) Depth: 1/16 00:00:00 4.Nxe7+! Qxe7 -+ (-3.19) Depth: 1/19 00:00:00 1kN 4.Bxe7! -+ (-3.16) Depth: 1/19 00:00:00 1kN 4.Bxe7! gxh2 -+ (-2.37) Depth: 1/19 00:00:00 1kN 4.Qg2! -+ (-1.72) Depth: 1/19 00:00:00 1kN 4.Qg2! ³ (-0.47) Depth: 1/19 00:00:00 1kN 4.Qg2 Be5 5.fxg6 ³ (-0.37) Depth: 2/22 00:00:00 3kN 4.Qg2 Be5 5.fxg6 fxg6 ³ (-0.37) Depth: 3/23 00:00:00 11kN 4.Qg2 Be5 5.fxg6 fxg6 6.Kb1 ³ (-0.28) Depth: 4/25 00:00:00 22kN 4.Qh4! = (-0.25) Depth: 4/25 00:00:00 26kN 4.Qh4! g2 5.Rhg1 Bxd4 = (0.00) Depth: 4/25 00:00:00 33kN 4.Qh4 f6 5.fxg6 Rf8 6.Bxc4 Rxc4 7.Qxh5 = (0.19) Depth: 5/29 00:00:00 101kN 4.Qh4 Bf6 5.Bxf6 exf6 6.Bxc4 Rxc4 7.Kb1 Re5 ² (0.28) Depth: 6/28 00:00:00 254kN 4.Qh4 f6 5.Be3 Qa5 6.fxg6 g2 7.Rhg1 ² (0.38) Depth: 7/30 00:00:01 929kN 4.Qh4 Bf6 5.Bxf6 exf6 6.Ne2 g2 7.Rhg1 Na5 8.Rxg2 Nxb3+ 9.axb3 ² (0.56) Depth: 8/32 00:00:04 2822kN 4.Qh4 Bf6 5.Bxf6 exf6 6.Ne2 g2 7.Rhg1 Na5 8.Rxg2 Nxb3+ ² (0.56) Depth: 9/34 00:00:09 6140kN 4.Qh4 Bf6 5.Bxf6 exf6 6.Ne2 g2 7.Rhg1 Na5 8.Nd4 Nxb3+ 9.Nxb3 Rc4 ± (0.78) Depth: 10/36 00:00:38 25265kN 4.Qh4 Bf6 5.Bxf6 exf6 6.Rdg1 Kf8 7.fxg6 fxg6 8.Rxg3 Ne5 9.Rg2 f5 ± (1.00) Depth: 11/38 00:02:31 101228kN 4.Qh4 g2 5.Rhg1 Nf6 6.Bxf6 exf6 7.Bxc4 Rxc4 8.Rxg2 g5 9.Qg4 Bc6 ± (0.97) Depth: 12/41 00:05:46 235730kN (Blass, Tel-aviv 17.08.2001) Uri
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