Author: Bruce Moreland
Date: 17:38:52 01/27/98
Go up one level in this thread
On January 27, 1998 at 17:34:30, Amir Ban wrote: > >On January 27, 1998 at 12:45:49, Bruce Moreland wrote: > >You managed to put in here a lot of processor time in just a few hours. >Great. I ran out of ideas to test, so I've been messing with ECM. In a couple of days I'll have a whole bunch more information, meanwhile, I'll try to respond to what you do. I had already run some of these for a long time, but the run isn't finished yet. >>On January 27, 1998 at 11:53:23, Amir Ban wrote: >> >>>No. 321 (Rd5): >>> >>>I play here Nd5 instead, but don't see a plus score. Black mustn't take >>>on d5, but after Rd5 Qc7 I don't see a continuation. >>> >>>Recommend: Discard. >> >>I ran this for an hour and have Nd5, +2. >> > >Ok. Unless you have a clear line for Nd5 we should discard it. Nd5 resolves as +1 in well under 20 seconds, so if Nd5 *is* the right answer, this one is too easy anyway. The lines I get involve black taking the N and then giving back a B a few moves later, then losing a pawn or an exchange or both. I don't know what happens if black doesn't take the knight. >>>No. 336 (Rxd4): >>> >>>I find Bxe5! as a free gain of a pawn. I don't know what the point of >>>Rxd4 is. >>> >>>Recommend: Change key to Bxe5. >> >>Rxd4 is illegal. >> >>r1bqr1k1/pp3pp1/2p4p/3PN1n1/3P1b2/2NB4/PPQ2PPP/3R1RK1 b - - 0 1 >> >>I have Rxe5 (the key in my version of the file) at 21 seconds, +2. >> > >Mistake. Change that to 335 and retry. I get Bxe5 after an hour, +2, which is about where it starts out when first found. >>>No. 354 (Qxf3): >>> >>>This one's unclear. 1...Qxf3 2.Nxf3 Rxh3+ 3.Kg1 Rxf3 is a nice position >>>for black but I don't see a decisive line. This may be meant as a >>>positional sacrifice. It doesn't look inferior to any other possibility, >>>which may be a basis for accepting it. >>> >>>Recommend: Investigate. >> >>I have this as a draw score after 20 seconds, but didn't look further >>yet since I find the key move. >> > >It's reasonable to find it, but where's the win ? Haven't looked. >>>No. 366 (Rxd8): >>> >>>I think this one's wrong. 1.Rxd8 Qxd8 2.Qh4 Kg8 3.Rxf6 white gets two >>>minor pieces for a rook, but will be sorry he did after 3...Qb6 which >>>gives black a strong counterattack. >>> >>>Recommend: Discard. >> >>Found in 38 minutes with a score of +0.5. >> > >What line ? I mistrust this one even if you found it due to line I >posted above. Yes, I'd like to see the ECM line for this one. bruce
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