Author: Roberto Waldteufel
Date: 10:56:32 10/08/98
Go up one level in this thread
On October 08, 1998 at 02:26:00, Dave Gomboc wrote: >On October 05, 1998 at 13:21:22, Komputer Korner wrote: > >>On October 03, 1998 at 01:17:51, Dave Gomboc wrote: >> >>>On October 02, 1998 at 04:12:21, Ed Schröder wrote: >>> >>>>I don't use the piece-square tables to make Rebel play 2.c4 >>>>I have made a chess tree from a good database. Rebel consults the chess tree >>>>and finds for 2.c4 a good score (say 55%) in (say 4000) games with an average >>>>elo of (say) 2400. >>>> >>>>Based on this data I add a "flexible" bonus to 2.c4 >>>> >>>>The bonus can vary from -1.00 to +1.00 >>>> >>>>Rebel gives the following information: >>>> >>>>Move % Games Bonus >>>>2.c4 58% 17.806 +0.52 >>>>2.Nf3 55% 6.775 +0.23 >>>>2.e4 60% 379 +0.25 >>>>2.Bg5 59% 299 +0.25 >>>> >>>>So based on the chess tree a 0.52 bonus is added to 2.c4 which will force >>>>Rebel to play the move. >>>> >>>>- Ed - >>> >>>Is there a typo here? I am troubled that 2.e4 (after 1.d4 d5) is receiving a >>>bonus... >>> >>>Dave Gomboc >> >>Haven't heard of the Blackmar Diemer gambit old chap? >>-- >>Komputer Korner > >I've heard of it. It's certainly not so good that I'd give a bonus for playing >it! I assume that the static evaluation of the move is low enough that it won't >get played anyway. > >Dave Gomboc Hi Dave, It has a name: the Blackmar-Diemer gambit. It is one of these very complicated off-beat gambits that has a fanatical following, rather like the Latvian gambit (1.e4 e5 2 Nf3 f5!?) and one or two others. There are thematic postal tournaments in this line, and there is even a magazine, "Blackmar-Diemer Gambit World". There is a huge body of rather obscure theory on it, mostly hard to find and only available in German. If you want a good source of games, try Rev. Tim Sawyer's book on the opening. Although it is unsound (in my opinion), and almost never played at the highest level, it is very dangerous and does indeed score extremely highly at club level (more than 80% according to Sawyer!), as I discovered to my cost as Black in several games until I found a good system to equalise against it (I gave up trying to refute it after some very nasty losses!). I think that this is why it scores well statistically. Best wishes, Roberto
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