Author: Roy Eassa
Date: 15:52:22 03/28/02
Go up one level in this thread
On March 28, 2002 at 17:52:49, martin fierz wrote: >On March 28, 2002 at 17:45:45, martin fierz wrote: > >>On March 28, 2002 at 15:55:15, Roy Eassa wrote: >> >>> >>>[d] rn1qkbnr/pbpp2pp/1p2p3/5P2/2PP4/3B4/PP3PPP/RNBQK1NR b KQkq - 0 4 >>> >>>The GM annotator to a game says that White wins as follows if Black plays >>>5...Bxg2, but Fritz does not agree: >>> >>>"5...Bxg2 6.Qh5+ g6 7.fxg6 Bg7 8.gxh7+ Kf8 9.Bg5!! Nf6 10.Qh4 Bxh1 11.Ne2 >>>planning Nf4, and even a rook down, White's attack is too strong." >>> >>>Fritz thinks Black is better here, with 11...Na6 or 11...Kf7 being best. >>> >>>Is 5...Bxg2 really bad? If so, is this line the refutation? If so, how does >>>White continue >> >>i did a quick chessbase search, and this line has been played with black by >>people like miles and short (when he was a kid) and psakhis and shabalov. first, >>they took the pawn with 5...Bxg2 (miles did), later, after 9.Bg5 was discovered, >>they refrained from taking it, and went for 5...Bb4+ instead (miles also did). >>in the end, miles took the pawn again: >> >>Yermolinsky,C - Miles,A (2609) [A40] >>World Open Philadelphia USA (2), 28.06.1999 >> >>1.d4 e6 2.c4 b6 3.e4 Bb7 4.Bd3 f5 5.exf5 Bxg2 6.Qh5+ g6 7.fxg6 Bg7 8.gxh7+ Kf8 >>9.Bg5 Nf6 10.Qh4 Bxh1 11.Ne2 Bf3 12.Nf4 Nc6 13.Nd2 Bg4 14.Ng6+ Kf7 15.Ne5+ Nxe5 >>16.dxe5 Bf5 17.Bxf5 exf5 18.exf6 Bxf6 19.Qh5+ Kg7 20.Qh6+ Kf7 21.Qh5+ Kg7 >>22.Qh6+ ½-½ >> >>not many people play it though as black... your sample line after ...Kf7: >>11...Kf7 12.Nf4 Nc6 13.Bg6+ Kf8 14.Nh5 Nxd4 15.Nd2 Nf5 16.Bxf5 exf5 17.Nxf6 Qe7+ >>18.Kd1 Bxf6 19.Bxf6 Qxh7 -/+ >>i'm not sure about why miles played Bf3, but i guess it was to stop white from >>castling long. so i would suggest 11...Kf7 12.Nd2 (to stop Bf3 and the >>castling). i'm not surprised by the way that fritz sees a black advantage, fritz >>is more on the materialistic side as far as the programs go. someone might try >>gambit tiger on this? >>i played as white against fritz to produce the following line: >> >>11...Kf7 12.Nd2 Nc6 13.0-0-0 Nb4 14.Bb1 Bb7 15.Rg1 c5 16.Nf4 Nxa2+ 17.Kd1 Nb4 >>18.Nh5 and now it sees that it's lost. note how white first calmly develops and >>castles and brings the rook into play, before going for Nf4-h5. it's very hard >>for black to do anything in this position. i think that it's already over after >>13. OOO in this line, which of course, fritz does not see yet. but white just >>can build up a huge attack. >> >>aloha >> martin > >here's a game in chessbase against 11...Nc6: > > >Magerramov,E (2435) - Psakhis,L (2535) [A40] >URS-ch U26 Riga, 1980 > >11...Nc6 12.Nd2 e5 13.0-0-0 e4 14.Bxe4 Bxe4 15.Nxe4 Rxh7 16.Qf4 Kf7 17.N2c3 Rh5 >18.h4 Nb4 19.a3 d5 20.Nxf6 Bxf6 21.axb4 Qd6 22.Qg4 Rah8 23.Nxd5 Bxg5+ 24.hxg5 >Rh1 25.Qf3+ 1-0 > >again, white first plays a Nd2-OOO plan before going in for the kill. this line >was played a couple of times. i guess 11..Bf3, which miles played agains yermo >is critical - but i'd be surprised if it was correct! > >aloha > martin Martin, thanks for the great responses! It looks like the GM who annotated the game, Patrick Wolff, was a bit hasty. (I've met him, and he's a good guy, but I have found numerous errors in his annotations lately.)
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