Author: Miguel A. Ballicora
Date: 08:28:19 09/23/01
Go up one level in this thread
On September 23, 2001 at 08:54:02, Gian-Carlo Pascutto wrote: >On September 23, 2001 at 05:29:51, Peter Berger wrote: > >> >>[D]2b3k1/p4ppp/7q/2Q5/8/P3r1P1/1r4BP/R3R1K1 b - - bm Bb7; id "ECM.1197"; >> >>This one looks wrong. > >Nope...Bb7 is the fastest mate. I see that both (Rxg2 and Bb7) ends up in checkmate or huge advantage. I do not think it is a good idea to have this kind of test. Once a program finds a mate it might stick to it. That does not change at all the strength of a program. In other words, this position does not test any improvement in stregth IMHO. I would take it out. >>[D]2r1r1k1/pp1nbpp1/4pn1p/q3NN1P/P1pP1B2/2P5/1PQ2PP1/R3R1K1 w - - bm Nxg7; id >>"ECM.1227"; >> >>I think Bringer's solution here is even prettier than the original one ;-) >> >>0:00:44.1 (13/40) 12455642 0.00 1.Nxd7 Nxd7 2.Rxe6 >> >>Both lead to a forced draw as far as I can see - or is there some hidden win >>after Nxg7 ? White must win here! not a draw! I am 99% sure that this position is Gaprindashvili - Nikolac. I studied this game when I was very active and studying chess a lot. I got to be early 80's or late 70's. I do not have here my collection of informants, otherwise I will find it because it was in one of those. It was a caro-kann. I might be wrong but the position was burned in my retina. White won destroying the king side with Nxg7 and Bxh6+. It looks devastating. I will try to look at it. Maybe somebody can find this game? That'll be easier. >There seems to be yes. > >>[D]rnb2rk1/pp2bppp/2p5/q7/4NN2/4B1QP/PPP3P1/2KR3R w - - bm Rd5; id "ECM.1259"; >> >>This one looks wrong but this has been discussed before. > >Nd5 is correct, Rd5 is not. > >>[D]r1b2r1k/ppppq1pp/2n1n3/6N1/2B2P2/4B3/PPP3PP/R2Q1RK1 w - - bm Nxh7; id >>"ECM.1612"; >> >>I don't really understand this position. 1.Nxh7 Kxh7 2.Qh5+ Kg8 3.f5 Ne5 4.Bb3 >>Qe8 5. Qh4 probably ? Why Bb3? 4.fxe6! I think is a good move!. 4.fxe6 Nxc4 5.Rxf8 Qxf8 6.Rf1 Qe7 7.Qf7+ Qxf7 8.exf7 Kf8 9.Bd4 and white is won next move is Bxg7+ with a short mate soon. sounds like a crushing PV. >>Nice position. 1.Bxe6 dxe6 2.Qd3 g6 3.Rad1 - nice position,too. 1.Qh5 g6 2.Qh6 >>Qg7 3.Qxg7+ etc as Crafty suggested - not bad either. >>Is there some original analysis availlable explaining it? > >I eliminated this one. White seems to have multiple good moves. I would not eliminate this one (at least not yet). The PV I gave above sounds too good. A quick check with Gaviota, starting from the position after fxe6 seems to confirm it. Regards, Miguel > >-- >GCP
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