Author: Simon Finn
Date: 03:15:29 08/22/01
Go up one level in this thread
On August 21, 2001 at 14:24:06, Torstein Hall wrote: >I resently saw a game in a local newspaper where one of the players "improved" >on the opening theory in the following position. > >NN - NN >Bergen Open 2001 > >1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 e6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Be2 a6 9.e4 >b4 10.e5 bxc3 11.exf6 Bb4 TN This move was presented as an improvment over >normal theory! The reason behind the move was as follows. If 12.fxg7+ then c2+!! >and black is winning easily. > >[D]r1bqk2r/3n1ppp/p1p1pP2/8/1b1P4/2p2N2/PP2BPPP/R1BQK2R w KQkq - 0 > >Of course white can not be that naive, but plays 12.0-0 Nxf6 and we reach the >critical position 1. > >[D]r1bqk2r/5ppp/p1p1pn2/8/1b1P4/2p2N2/PP2BPPP/R1BQ1RK1 w kq - 0 13 > >Can your program find the best move here? >Some computer attempts: > >Crafty at ply 12 gives: 13.Qa4?! with a score of - 0.17 (Black is better) > >Hiarcs 7.32:Likes 13.Ne5?! with -0.5 score > >Fritz comes up with the correct move at ply 12 but can not see that white has a >large advantage!: 13.bxc3! > >OK lets continue: > >13.bxc3 Bxc3 If 13...Be7 black play the normal variation with a tempo missing. > >(The real)Critical position 2: >[D]r1bqk2r/5ppp/p1p1pn2/8/3P4/2b2N2/P3BPPP/R1BQ1RK1 w kq - 0 14 > >What to play with white? > >Fritz want to play: Rb1?! at ply 13 >Hiarcs also likes Rb1 >Crafty goes for the same shit..... > >Can any program within normal tournament time limits find the right move? >And the right answer is: 14.Ba3! > >Here is a typical continuation. 14...Bxa1 15.Qxa1 Bb7 16.Ne5 Qc7 17.Nc4 and now >some computers start to realise that white has the advantage. 15... Bb7? is a horrible move. 15... Nd5 is much better, intending Ne7 and O-O or f6 and Kf7. For example, after 15 ... Nd5 16. Ne5 Ne7 17. Bf3 O-O, White can regain all the lost material may have problems with his d-pawn. No better than equality for White, I think. Perhaps White should try 15. Qc2!? instead? Simon > Let the game >continue: 17...Nd5 18.Nd6+ Kd8 19.Qb2 Bc8 20.Rb1 a5 21.Bc5 a4 22.Bc4 > >[D]r1bk3r/2q2ppp/2pNp3/2Bn4/p1BP4/8/PQ3PPP/1R4K1 b - - 0 22 > >..and now even the dullest computer start to see the truth. White has a big >advantage! > >It looks like computer chess has a long way to go before it understand the >consept of a real positional sacrifise. > >Torstein > >PS I guess this is Childrens knowledge for Kramnik. Maybee I should mail him the >game. :-)
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.