Author: Drexel,Michael
Date: 04:33:19 09/15/03
Go up one level in this thread
On September 15, 2003 at 00:43:56, Sune Larsson wrote: >On September 14, 2003 at 11:51:40, Drexel,Michael wrote: > >>On September 14, 2003 at 11:33:03, Rex wrote: >> >>>My personal Shredder settings finds Qc4+ in just over 1 minute. >> >>Fine, but Qc4+ is not better than Qxa5. >> >>1. Qc4+ Bf7 2. Qc7 Rc8 3. Qxa5 Kh8 4. Rc7 Ra8 5. Ra7 Rxa7 6. Qxa7 Bh5 >> >>Game over >> >>Best move is probably Qb7 with a bad position for white after Bf7. >> >>Michael > > > I'm very short of time right now (work!) - but here are some analysies > by the winner. (hope he doesn't mind...) > > >"Anyway I am surprised that the engines all underestimate Black's idea of >exchanging the only real defender, the Bg2. With the exception of Junior maybe. >In the diagram position the only fact Black can count on is, that his queen is >in the attack to the opposing king, while the white queen is not (yet). White >has an advantage on the queenside already with his pawn majority. >If Black comes to a free Kg8-h8 and therefore the threat Rf8-g8 he must win. It >must be White's first concern to prevent this. After that he simply pushes his >queenside pawns and that gives him sufficent conterplay. > >After 32. Qb7 a typical drawing line could go like this: >32.Qb7 Bf7 33.b4 axb4 34.axb4 Rb8 35.Qd7 Rxb4 (aha, progress ?) 36.Bh3 (no, just >another counterplay) 36. .. Rb2 37.Rxf7 Rxf7 38.Be6 Qg5+ 39.Kh2 Qh5+ 40.Kg2 Kg7 >41.Qe8 = (from one pin to another, nice!). > >Another possibility is: >32.Qb7 Qg5 33.f4 exf4 34.Rxf4 (now that rook is in play; active, but also for >the defence of the white king. That can't be anything for Black.) 34. .. Qg3 >35.Kh1 Rc8 36.Rf1 Rc5 (looks like an idea, but) 37.e5! Bf7 38.Qb6 Rxe5 39.Rxe5 >fxe5 40.Qxh6 = > >The alternative 32.Qc4+ is even more complex. >After 32.Qc4+ Bf7 33.Qc7 Rc8 34.Qd7 (I said "don't leave the 7th rank": 34.Qxa5? >Kh8 - for free - 35.Rc7 Rb8 and then Rg8 -+, but that electronic guys don't have >ears;-)) there seems to be nothing for Black: >34. .. Rc3 35.b4 Rxd3 36.bxa5 Rxa3 37.a6 and White is already clearly better. have no board right now but I found yesterday that 35...Rxd3 would be of course a mistake. After 35...axb4 it is only black who has chances to win unless he blunders. 32.Qc4+ just loses a tempo and therefore it is clear that 32.Qb7 is the correct continuation. >That outside passed pawn is incredibly strong and paralyses Black.) >Ok, Black can repeat moves with 34. .. Rcd8 35.Qc7 Rc8 or play 34. .. Rc1 35.b4 >Rxf1+ 36.Bxf1 Qg5+ to go for a draw. > >So probably instead of 32. .. Bf7 stronger is 32. .. Rf7 (forget about attack), >but I would give Black only a slight advantage after 33.b4 Kg7 34.Rxf7+ Bxf7 >35.Qc1" - Schön. > >/S
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