Author: Rafael Andrist
Date: 11:04:25 11/21/01
Go up one level in this thread
On November 21, 2001 at 13:14:48, Peter Berger wrote: >[D]r1br4/1pq2p1p/p3pnkB/8/8/1BP2Q2/PP3PPb/R3R2K b - - 0 18 am Nd5 bm Nh5 ;id >"Adams-Dreev,Wijk an Zee 1996" > >This one is very tough. I analyzed it for several hours with the electronical >friends and they seemed to have a very hard time. > >Maybe you will have to give your engine some time to find Nd5 before you give it >even more to avoid it again :). > >Any engine that can solve this ? > >To get an idea what is going on, here is what the GMs played: > >18...Nd5 19.Rad1 f5 20.Bc1 Bd6 21.Bxd5 exd5 22.Rxd5 +- > >Especially 20.Bc1 seems to be hard but I believe it's the pure depth which is >the biggest problem. > >Regards, >pete > >PS: Btw, 18...Nd5 is in Fritz 7 tournament book ;-) Nice, in my own book there's the line Nf6-h5 20. Bh6-e3 f7-f5 21. g2-g4 Nh5-f6 22. g4xf5+ e6xf5 23. Qf3-g2+ Nf6-g4 24. f2-f3 b7-b5 25. Bb3-c2 Kg6-f6 26. Be3-d4+ Rd8xd4 27. c3xd4 If I remember correctly, this line is recommended in the NCO. Because he's tactically very weak, "Wilhelm" cannot find Nh5 without book but it avoids Nd5 early and goes for e5 ply time value nodes N nodes Q PV 1 0s -2.28 45 52 Kg6xh6 2 0s -2.28 268 1645 Kg6xh6 Qf3xf6+ 3 1s -2.42 3449 6576 Nf6-d5 Qf3-h3 f7-f5 4 3s -2.33 17728 23833 Nf6-d5 Qf3-h3 f7-f5 Ra1-d1 5 20s -1.55 127900 142703 e6-e5 Kh1xh2 Nf6-g4+ Kh2-g1! Ng4xh6 Qf3-e4+ 6 60s -1.55 422032 426589 e6-e5 Kh1xh2 Nf6-g4+ Kh2-g1! Ng4xh6 Qf3-e4+ Kg6-g7! Qe4xe5+ 7 303s -1.27 2361597 1924850 e6-e5 Bb3-c2+ e5-e4! g2-g3 Qc7-e5 Kh1xh2 Kg6xh6 Bc2xe4 8 1210s -1.14 9789482 6046063 e6-e5 Bb3-c2+ e5-e4! g2-g3 Nf6-h5 Qf3-e3 Nh5xg3+ Kh1-g2! f7-f5 Qe3-g5+ Rafael B. Andrist
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