Author: Simon Finn
Date: 03:42:32 09/26/01
Go up one level in this thread
On September 26, 2001 at 05:09:07, Simon Finn wrote: >On September 25, 2001 at 18:11:51, Miguel A. Ballicora wrote: > >>On September 25, 2001 at 14:23:26, Simon Finn wrote: >> >>>On September 25, 2001 at 13:48:55, Miguel A. Ballicora wrote: >>> >>>>On September 25, 2001 at 12:30:20, Simon Finn wrote: >>>> >>>>>On September 24, 2001 at 18:13:09, Miguel A. Ballicora wrote: >>>>> >>>>>>On September 24, 2001 at 17:41:22, Miguel A. Ballicora wrote: >>>>>> >>>>>>>Just to start a thread on this and post a diagram, Peter Berger >>>>>>>thinks that Qh6 could be another solution. >>>>>>> >>>>>>>[D]2r2rk1/pp2pp1p/2np2p1/q4P2/2PBP1b1/2N5/PP1Q2PP/R4RK1 w - - bm h3; id >>>>>>>"ECM.1527"; >>>>>> >>>>>>I've been thinking for ~10 minutes here in front of the screen and I do not >>>>>>see how black can be saved after 1.b4. >>>>>>1... Nxb4 2. Nd5 threats mate in e7 and the Knight in b4 that is pinned. >>>>>>1... Qxb4 2. Qh6 f6 (Nxd4 3. Nd5 mate in e7 and queen in b4) >>>>> >>>>>After 2... Nxd4 3. Nd5 Qc5 where is the mate? >>>> >>>>Nowhere! >>>>I did not mean mate in e7 in the second sentence. It was a "Lapsus" >>>>after typing the first sentence. I meant mating attack (after taking in e7 >>>>and/or in combination with f6 or fxg6 etc.). >>>>Anyway, it is not correct what I meant!. I did not see that Qc5 threats Nf5+! >>>> >>>>Still the position is very promising for White, I think, if you let me change >>>>the PV. I will need to check thouroughly but >>>>1.b4 Qxb4 >>>>2.Qh6 Nxd4 >>>>3.f6 (better than Nd5?) Ne6 >>>>4.Nd5 creates a lot of problems to black. After Qc5+ >>>>5. Kh1 the threat is fxe7 - Nf6+ and that looks good. A quick check with >>>>Gaviota from this position seems to confirm this. >>> >>>Doe White have better than this? >>> >>>5 ... Kh8 6. fxe7 f5 7. exf8Q+ Nxf8 >>> >>>Black is worse, but I wouldn't resign it. >> >>Actually, this position is resignable after 8.exf5 >>Black cannot play 8... Bxf5 because of 9.Rxf5 gxf5 10.Qf6+ and Ne7# > >OK - I resign that one! > >>If black cannot retake in f5 White is exchange up with an unstoppable >>attack. 9.f6 is a serious threat and also fxg6 and Rf7. Feeding this position >>to Gaviota I found this >> >> 2330313 8: 20.5 +5.20 e4xf5 Bg4-f3 Nd5-e7 Bf3xg2 >> <-transp >> 3651989 9 32.5 :-) e4xf5 >> 3883252 9 34.5 +5.51 e4xf5 Bg4-f3 Rf1xf3 Qc5-d4 >> Ra1-c1 Qd4-e5 f5-f6 Nf8-e6 >> f6-f7 Qe5-g7 Qh6xg7 Kh8xg7 >> 4685131 9: 41.5 +5.51 e4xf5 Bg4-f3 Rf1xf3 Qc5-d4 >> Ra1-c1 Qd4-e5 f5-f6 Nf8-e6 >> f6-f7 Qe5-g7 Qh6xg7 Kh8xg7 >> 8828289 10 79.3 :-) e4xf5 >> 15452000 10 136.5 +6.03 e4xf5 Qc5-d4 f5-f6 Nf8-e6 >> Nd5-e7 Bg4-f5 Ne7xc8 Qd4-c5 >> Nc8-e7 Bf5-d3 f6-f7 >> 20459370 10: 179.3 +6.03 e4xf5 Qc5-d4 f5-f6 Nf8-e6 >> Nd5-e7 Bg4-f5 Ne7xc8 Qd4-c5 >> Nc8-e7 Bf5-d3 f6-f7 >> >>Black does not do better than a rook and exchange down. >> >>rewinding a little, rather than taking in f8 with the knight, if >>7....Rxf8 >>8.Nf4 wins another piece. (or Re8/ Nxe6 Rxe6/ Qf8#) >>To confirm it: >> 11808844 10 104.0 +3.43 Nd5-f4 Rf8-f7 Nf4xe6 Qc5xc4 >> Ne6-f4 Rf7-g7 Ra1-c1 Qc4-g8 >> h2-h3 Bg4-h5 Nf4xh5 g6xh5 >>So Black end up with a rook down. >> >>We should look for alternatives earlier, but it doesn't look that there are >>many. > >One last try (without a computer, so it may be rubbish!) > >1. b4 Qxb4 2. Qh6 Nxd4 3. f6 Ne6 4. Nd5 Qxc4 5. fxe7 Qd4+ 6. Kh1 Qg7 Yes - it's rubbish. 7. Nf6+ Kh8 8. exf8Q+ Rxf8 9. Nxg4 I can't see a good alternative either, so 1. b4 may well be a cook. Simon > >Perhaps 3. Nd5 (retaining the option of Nxe7+ and Nxg6+) is better >than 3. f6 after all? > >Simon > > > > > > >> >>Regards, >>Miguel
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