Author: Martin
Date: 08:43:59 03/01/00
Go up one level in this thread
Hello KarinsDad :) On March 01, 2000 at 10:19:44, KarinsDad wrote: >On March 01, 2000 at 08:57:20, Martin wrote: > >>On March 01, 2000 at 03:42:23, Bernhard Bauer wrote: >> >>>On March 01, 2000 at 02:58:49, Dann Corbit wrote: >>> >>>>On March 01, 2000 at 01:37:17, Janos Keinrath wrote: >>>> >>>>>Hi! >>>>> >>>>>Yesterday I saw an intresting endgame position on ICC. >>>>> >>>>> > >[D]8/8/6k1/3p4/3P4/2P2PKp/pB4b1/8 b - - > > >I see some other possibilities here. All of the analysis that I have seen in >this thread has had white opening up the position. How about the following? > >1 ... Kf5 >2 Ba1 Bf1 >3 Bb2 Be2 >4 Ba1 h2 >5 Kxh2 Kf4 >6 Kg2 Bxf3+ >7 Kf2 > >and white should be able to get over to the queenside and attempt a draw. > >1 ... Kf5 >2 Ba1 Bf1 >3 Bb2 Be2 >4 Ba1 h2 >5 Kxh2 Bxf3 >7 Kg1 > >and the same thing. > >If black attempts to get to the queenside without using the Be2 move, then white >can at some point (once black's king is at b3 for example) play f4. If black >then goes after white's bishop and tries to queen the a pawn, white gets to >queen the f pawn. If black tries to stop that with Bf1, Be3, Bg6, white can play >c4 (once the black king move to c2). This probably still fails for white, but it >takes 5 moves for black to play kc2, kb1, kxa1, kb1, a1(Q), so the white c and f >pawns are fairly threatening. The idea is that white should NOT play c4 until it >gives him a true advantage. > >And since white has the king side bottled up (unless black attempts something >like the lines above), black is forced to move his king to the queenside if he >wishes to force something. > >Now, there may be a way to still give black the win, but I am not sure that it >is so cut and dry as people think. > >KarinsDad :) I think wasting time with Ba1-b2-a1 is just too slow. White needs its pawns closer to the 8th rank. Now let's get concrete. 1...Kf5 2.Ba1 Bf1 3.Bb2 Be2 4.Ba1 h2 5.Kxh2 Kf4 6.Kg2 So far we agree. 6...Ke3 Not Bxf3, Black has to control the d2 square in order to keep the wK away. 7.f4 Or do you want to play c4 right now? (7.c4 dxc4 8.f4 Kd2 9.f5 c3 10.f6 c2 11.f7 c1D 12.f8D and the a-pawn is killing white...) 7...Bd3 8.Kg3 (8.c4 dxc4 9.Bc3 Pushing the pawns forward gives nothing since the bB controls the diagonal c8-h3 and f5, while the bK goes to d2. 9...Be4+ then Kd3 and the c-pawn wants to become a girl. White is too slow.). 8...Kd2 9.Kg4 Anything else but trying to support the f-pawn is even worse. The square g4 is suboptimal but there's no better one... 9...Kc2 Is it now okay to play c4? (black threatens Kb1) Let's try it. 10.c4 (10.f5 Bxf5+ and the a-pawn queens) 10...dxc4 Now the pawn race starts, you're right. But it's black who has the pole position here. 11.f5 (11.d5 c3 12.d6 Bb5 13.f5 Bd7 and the black king has the choice to leave the f-pawn or to step on g5/f4 getting a check by a queen on c1). 11...c3 12.d5 Closing the a2-g8 diagonal (12.f6 Bc4 and the white king is too far away to support his guys) 12...Kd2 13.f6 c2 14.f7 c1Q 15.f8Q Qxa1. Black has an extra bishop and an a-pawn which looks quite scary... Okay, it's not easy (we had this discussion with Berhard already) but I think it's won for black. Martin
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