Author: Martin
Date: 09:04:46 03/02/00
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On March 02, 2000 at 11:51:20, Martin wrote: >On March 01, 2000 at 14:55:09, Howard Exner wrote: > >[snip] >>> >>>>Crafty with modified extensions gives the following lines: >>>> >>>> 21-> 7:01 1.67 1. ... Kf5 2. c4 dxc4 3. d5 Bf1 4. >>>> Kh2 Be2 5. d6 Ke6 6. f4 Bg4 7. Be5 >>>> c3 8. Bxc3 Kxd6 9. Kg3 Kd5 10. Ba1 >>>> Bf5 11. Kh2 Ke4 >>>> 22 11:53 ++ 1. ... Kf5!! >>>> 22 18:48 2.50 1. ... Kf5 2. c4 dxc4 3. d5 Bh1 4. >>>> d6 Ke6 5. Kxh3 Bxf3 6. Bh8 Kxd6 7. >>>> Kg3 Be2 8. Kf4 Kd5 9. Bc3 Bd3 <HT> >>>> 22-> 20:38 2.50 1. ... Kf5 2. c4 dxc4 3. d5 Bh1 4. >>>> d6 Ke6 5. Kxh3 Bxf3 6. Bh8 Kxd6 7. >>>> Kg3 Be2 8. Kf4 Kd5 9. Bc3 Bd3 <HT> >> >> >>The move 4. Bh8 might give black more troubles instesd of d6. If black now tries >>h2 then Kxh2 >>looks like it holds on with Martin's theme of getting the black king back to the >>queenside just in time. >> > >Hello Howard! > >The line given by Crafty is not the best (3...Bh1? Keeping the h-pawn protected >as long as possible is most sensible). But you're right, even in "my" main >variation I've been not analysing it consequently enough: > >1... Kf5 2.c4 dxc 3.d5 Bf1 4.Bc3 (or 4.Bh8; on c3 it's purpose is to keep the b4 >square under control). > >[D]8/8/8/3P1k2/2p5/2B2PKp/p7/5b2 b - - 0 4 > >So far white's moves seem to be forced. The king on f5 is better than on g6 and >the bishop on f1 still protects h3 without being attacked by the wK. At the >moment white cannot do anything (he can play Bc3-h8-c3 or something; it's >important to prevent that the bK goes to f4-e3). > >What are white's possibilities? > >1) h3-h2 (forcing white to give up the protection of f4), >2) moving the bishop away (in order to prevent that white gains a tempo while >attacking the Bf1 - which he of course can only do after the h-pawn has >disappeared), >3) trying to attack the d-pawn (via g6-f7...) > >The first one is bad: 4...h2 5.Kxh2 and now 5...Kf4 is not possible due to the >attack on the bishop 6.Kg1 (and then Kf2). Moving the bishop away first loses an >important tempo (again: white can lose the f-pawn if he get's to the queenside >early enough). > >The second one I thought would be sufficient but now I'm not sure anymore: > >4...Be2 5.d6! (Till now I only considered the worse 5.Kxh3? which opens the path >f4-e3 for the white king: 5...Kf4 6.Kg2 Ke3 and so on) 5...Ke6 (This is the >idea: to throw the dangerous bK back in order to get time... I already mentioned >it in an earlier post but was not consequent enough) 6.Kxh3 (of course not 6.f4? >Kxd6 7.Kxh3 Kd5 8.Kg2 Ke4 9.Kf2 Kd3-+ In this variation the f-pawn better >protects the e4-square) 6...Kxd6 7.Kg3 Kc5 8.Lc3 Kb5 9.Kf2 Ld3 10.Ke3 Ka4 >11.Kd2= Sad. ;) *Sorry, the line I mean is: *6...Kxd6 7.Kg3 Kc5 8.Kf2 Bd3 9.Kb3 Kb5 10. Kd2=. > >Now I will check the third possibility at home (I'm here at work and cannot >analyse it too carefully...). If anyone is interested I'll post it here >tomorrow... :) > >Martin
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