Author: John Merlino
Date: 13:57:48 06/03/05
Go up one level in this thread
On June 03, 2005 at 02:24:17, Terry McCracken wrote: >On June 02, 2005 at 22:46:17, John Merlino wrote: > >>On June 02, 2005 at 22:41:14, John Merlino wrote: >> >>>On June 02, 2005 at 22:30:27, Terry McCracken wrote: >>> >>>>On June 02, 2005 at 22:09:13, John Merlino wrote: >>>> >>>>>On June 02, 2005 at 19:53:39, ludicrous wrote: >>>>> >>>>>>The first one is: >>>>>> >>>>>>[D]2bqkb1r/1r1n1ppp/p3p3/np6/4PB2/2N2NP1/P1Q2PBP/3R1RK1 w k - 0 16 >>>>>> >>>>>>White to move. Umansky played Nd5!! >>>>> >>>>>This looks like a sound sacrifice. However, CM9_R1 does not find it on an AMD >>>>>2500 in under three minutes. >>>>> >>>>>>The next is: >>>>>> >>>>>>Tal Mikhail (LAT) - Larsen Bent (DEN) [B82] >>>>>>Ch World match (1/2) Bled (Yugoslavia), 10.03.1965 >>>>>> >>>>>>[D]rqb2rk1/3nbppp/p2pp3/6P1/1p1BPP2/2NB1Q2/PPP4P/2KR3R w - - 0 16 >>>>>> >>>>>>Tal played 16. Nd5! >>>>> >>>>>But THIS looks like one of those infamous Tal "sacrifices" that did nothing more >>>>>than put the fear of God into his opponent. The King prefers many different >>>>>moves for Black other than the ones that Larsen played: >>>>> >>>>>17...g6 (score of -1.25) instead of 17...f5 (-0.50) >>>>>18...Bd8 (score of -1.94) instead of 18...Rf7 (-1.05) >>>>>19...Nc5 (score of -1.27) instead of 18...Bb7 (+0.75) >>>>> >>>>>Of course, this requires more intense analysis, but the early verdict is that >>>>>Tal stole another one.... :-) >>>>> >>>>>jm >>>> >>>>John the sac is sound, you can't take the Night without risk and if it lives it >>>>wins. If you mess with this long enough and go deep enough White's pieces are >>>>too much for Black's King. Maybe you can muster a defence, but it will be tough. >>>> >>>>Don't trust the King program that much...it fails to grasp sacs like Nxe6! in >>>>the Carro-Kann. >>>> >>>>1.e4 c6 2.d4 d5 3.Nc3 dc 4.Nxe4 Nd7 5.Bd3 Ngf6 6.Ng5 e6 7.Nf3 h6? 8.Nxe6! >>>> >>>>This test might be better suited for Junior or Rebel:) >>>> >>>>Terry >>>> >>>>The King is badly confused by this sac. >>> >>>Well, I can't argue with you there. >>> >>>But just because The King doesn't find one (or two) sacs doesn't mean that those >>>sacs are necessarily sound. As I pointed out in my follow-up, apparently this >>>jury is still out on this move. >>> >>>All I was saying was that there is possibly a way that Black could have >>>"mustered a defense", starting with 16...g6 instead of 16...f5. >>> >>>jm >> >>Yet another follow-up... :-) First of all, it should be 17...g6 instead of >>16...g6 above. >> >>I should also have included playing 18...Bd8 instead of 18...Rf7. So, the whole >>line I suggest, starting with the sac, is 16.Nd5 exd5 17.exd5 g6 18.Rde1 Bd8, >>and Black has solidified rather than ran forward and started exchanging pieces >>and allowing White a big attack. >> >>jm > > > >16.Nd5 exd5 17.exd5 g6 18.Rhe1 Bd8 19.Qh3 Ne5 20.Qh6 Bb6 21.f5 >gxf5 22.Bxb6 Ng4 23.Bd4 Nxh6 24.gxh6 f6 25.Re7 Rf7 26.Re8+ Rf8 27.Re7 >Rf7 28.Re8+ Rf8 29.Re7 = > > >I think:) I think you might be right. However, I don't think the point of White playing a sacrifice is to get a draw. :-) jm
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