Author: Alvaro Rodriguez
Date: 12:31:56 08/14/00
Go up one level in this thread
On August 14, 2000 at 14:59:07, Christophe Theron wrote: >On August 14, 2000 at 05:34:09, Alvaro Rodriguez wrote: > >>On August 14, 2000 at 02:50:51, Christophe Theron wrote: >> >>>On August 14, 2000 at 00:25:54, Ed Schröder wrote: >>> >>>>On August 13, 2000 at 23:04:06, robert blackwell wrote: >>>> >>>>>People should check out a position more carefully before claiming a move is bad. >>>>>bxa2 in the position given in the earlier post is the right move and it is the >>>>>move nd5 which loses as it breaks the pin on the d file preventing bxb3! any >>>> >>>>1..Bxa2 2.b3 Nd5 and black holds the position. If this is what you >>>>mean I am in agreement. >>>> >>>>Ed >>> >>> >>>That's what Tiger thinks, indeed. But I still believe that Tiger should not take >>>the pawn in a2. It is probably losing in the long term (but giving white a hard >>>time and many ways to lose). >>> >>>Playing b3 quickly does not work. After a 20 plies search the bishop was still >>>there and black's position was not so bad. Actually it's white that has to play >>>very carefully in order to hold the position. >>> >>> >>> Christophe >> >>I agree, the position is very complicated, and I think we might need some more >>example of this kind of positions.. Bxa2 looks very bad, but maybe it isn´t.. >>Maybe Bob have something to show us from the ICC games.. >> >>Regards, >>Alvaro > > > >Here is another unclear position that Uri has sent to me some time ago. > >[D]r2nkb1r/pp1n2pp/8/1P1pp3/8/2P1B3/1P3PPP/RN2KB1R w KQkq - 0 1 > >I think that Rxa7 Rxa7 Bxa7 is bad because black plays b6 and the bishop is >trapped. > >What does your favorite chess program think of this one? I have not tried the position in a program, but I think that black wins this one pretty easy. The plan is "simply" to open the 8`th rank, to move the rook to a8 and take the lonely bishop.. Maybe black can´t do that fast, but I can´t see how white can stop that plan.. Regards, Alvaro > > >If somebody has "obvious" positions where the bishop is "obviously" trapped and >will be "obviously" lost, I'm very interested. > >The position must meet two conditions: > >1) the program must not be able to see that the bishop is losing by search (the >loss must be 7 to 8 full moves away). > >2) it must be obvious that the bishop is hopelessly lost. > > > > Christophe
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