Author: Mike Byrne
Date: 09:18:13 12/27/02
Go up one level in this thread
On December 27, 2002 at 02:45:16, Kurt Utzinger wrote: >On December 26, 2002 at 19:53:10, Mike S. wrote: > >>On December 26, 2002 at 19:34:25, Mike Byrne wrote: >> >>>28. Be4! a super grandmaster move, by a super grandmaster. >>> >>>Any programs come up with this? >>>[d]2nq1nk1/5p1p/4p1pQ/pb1pP1NP/1p1P2P1/1P4N1/P4PB1/6K1 w - - >> >>It looks like White can insert the zwischenzug 28.hxg6, whereafter Black has to >>defend against the simple threat gxh7+ Kh8 (Nxh7 doesn't make much sense either) >>Nxf7 mate, first. IOW it looks to me as if Be4 doesn't have to be played >>immediatly (I didn't analyse much). >> >>It's often a problem with test positions when the attacker can play a simple but >>strong threat alternatively (and delay the intended solution, so you don't know >>if the program has missed it or is just going to play it later...). >> >>Analysis by Fritz 7 (P3/700, 96 MB hash): >> >>1.hxg6 fxg6 2.Nxh7 Nxh7 3.Qxg6+ Kh8 4.Qxe6 Bd7 5.Qxd5 Ng5 6.Nf5 Ne6 >> ² (0.63) Depth: 8/27 00:00:00 301kN >> ± (0.91) Depth: 12/35 00:00:23 7799kN >>1.Be4 Be8 2.hxg6 hxg6 3.Nh5 gxh5 4.Bh7+ Nxh7 5.Nxh7 f5 6.Nf6+ Kf7 7.Nxh5 Ke7 >>8.Qg7+ >> ± (0.94) Depth: 12/35 00:00:38 12492kN >> ± (1.09) Depth: 13/36 00:01:09 23280kN >> >>Regards, >>M.Scheidl > >Hi Mike >I fully agree. This test position is not a good one because at least three moves >are easily winning here, namely 1.Be4, 1.hxg6 and 1.Nxh7 > >Below the analysis of Shredder7 ond P4 1.8/32 MB hash: > >New game >2nq1nk1/5p1p/4p1pQ/pb1pP1NP/1p1P2P1/1P4N1/P4PB1/6K1 w - - 0 1 > >Analysis by Shredder 7: > >1.hxg6 hxg6 2.Qh8+ Kxh8 3.Nxf7+ Kg8 4.Nxd8 g5 5.Nb7 a4 6.bxa4 Bc4 7.Nd6 Nxd6 >8.exd6 Bxa2 > +- (1.44) Depth: 1/7 00:00:00 > +- (2.21) Depth: 10/26 00:00:01 525kN >1.Nxh7 Nxh7 2.hxg6 fxg6 3.Qxg6+ Kh8 4.Qxe6 Ne7 5.Nf5 Nxf5 6.gxf5 Qc7 7.Qh6 > +- (2.22) Depth: 10/26 00:00:02 631kN > +- (2.29) Depth: 15/41 00:01:57 31632kN >1.Be4 Be8 2.hxg6 hxg6 3.Nh5 gxh5 4.Bh7+ Nxh7 5.Nxh7 f5 6.exf6 Qc7 7.f7+ Kh8 > +- (2.30) Depth: 15/42 00:03:52 60969kN > +- (2.30) Depth: 15/42 00:03:52 60969kN > >(Utzinger, MyTown 27.12.2002) It may not be a good test position - I was just admiring the game itself. I am reviewing Chess Informant "DEMO BASE" with 500 annotated games selected from various Informants. Their new software, which I purchased, "Chess Informant Expert 4.0"( about $52) -- is very very cool. It allows for full import and export of CI electronic Informants to PGN and vica-versa. This could be very useful in building a quality book :>). There are also little known secrets in acquiring all of the Chess Informants books electronically (and legally) at modest cost. Chess Informant 83 CD, includes as a special bonus, all of the Chess Informant Games Volume 1-82 in PGN format(without annotations). It's highlighted on thier webpage ( http://www.sahovski.com/default.htm) , just go to the "Shop online" select electronic editions and find the "Chess Informants 83 & 84". You will get "Chess Informants 83 and 84 CD" for price of one(about $32). So for about $84, you can get Chess Informants 1-84 electronically with software that you will allow you to export and import into PGN files. Michael Byrne
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