Author: Ricardo Gibert
Date: 23:32:52 01/20/04
Go up one level in this thread
On January 20, 2004 at 23:52:08, Ricardo Gibert wrote: >On January 20, 2004 at 21:22:47, Geoff wrote: > >>Hi >> >>I was just looking at a game my program lost to see where it went wrong >> >>[D]r3k2r/pp1n1ppp/2p2nb1/3p4/3P4/1QN1PPq1/PP2B1N1/R1B2RK1 b kq - 0 2 >> >>I am a fairly weak chess player but looking at the above position my intuition >>that the position is about equal must be wrong? CM9000 reckons that white is >>ahead by at about +1.6. >>I would say that although black is approx 1 pawn down on material, its position >>is fairly solid, and blacks queen is starting to really mess up whites king >>safety. blacks bishop is nicely placed, knights are ok too and blacks pawn >>structure is sound, blacks king is not under pressure. >>Hence I guessed it looked about equal, my program also reckoned so with a score >>of 0.01. >> >>Where is my intuiton wrong on this one, at a glance what should tell me white >>has got a good advantage ? >> >> Regards Geoff > >You seem happy with Blacks minors, but the truth is they contribute little >activity. Optically speaking they are all developed on normal squares, but they >have no where to go. Of the 3, the Black B is the best of a poor lot. > >To get an idea of how brittle Black's position is, look how fast Black goes down >for the count with a natural continuation like 1...o-o-o, e.g. 2.e4! de4 3.Bf4 >Qh3 4.Nb5 wins. Or If 2...Nb6 3.Qa3 a6 4.Bf4 Qh3 5.Bxa6! wins. > >If instead 1...Nb6 2.a4! with the idea 3.a5 and 4.Qxb7 e.g. 4...o-o-o to defend >the b-pawn, but 5.a5 Nbd7 6.e4! Nb8 (6...Nh5 7.exd5) 7.Bf4 Qh3 8.Nb5 wins. > >It looks like o-o-o is a no-no, but if 1...Rb8 2.e4 threatens 3.Bf4. If 1...Qc7 >2.e4, since 2...dxe4 3.fxe4 Nxe4 4.Nxe4 Bxe4 5.Qxf7+ is crushing, so at best, >the Black Q will get cutoff from the K-side by an eventual e4-e5. On 1..b6 >2.Ba6 Upon a 2nd look, this latter move 2.Ba6 looks dumb. The thematic 2.e4 makes more sense. >looks good, while 1...b5 2.a4 is also good for White. > >This leaves us with sac'ing the b-pawn with 1...h5!? when 2.Qxb7 Rb8 3.Qxc6 h4 >4.Nxd5 Nxd5 5.Qxd5 h3 6.f4 Bf5 7.Qf3 Qg6 is not so clear, but again 2.e4! >instead is good for White.
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