Author: Howard Exner
Date: 00:04:07 01/26/01
Go up one level in this thread
On January 25, 2001 at 23:19:18, Eelco de Groot wrote: > >Thanks, Howard! Well the computer was doing almost all of the work. Maybe 4. >..Nc5xd3 is interesting for analysis more than I thought, but I would have to >look further down the line the computer gives too I suspect... > >[Event ""] >[Site ""] >[Date ""] >[Round ""] >[White ""] >[Black ""] >[Result ""] >[FEN "r4r1k/4bppb/2n1p2p/p1n1P3/1p1p1BNP/3P1NP1/qP2QPB1/2RR2K1 w - - 0 1"] > >1.Ng5 hxg5 2.hxg5 Rfc8 3.Nf6 gxf6 4.gxf6 Nxd3 * That is an improvement. I was trying lines using Qh5 instead of Qxd3 after the sequence 5.Rxd3 Bxd3 but as yet have found no winning lines for white. > >[D]r1r4k/4bp1b/2n1pP2/p3P3/1p1p1B2/3n2P1/qP2QPB1/2RR2K1 w - - > >Last Move : 4... Nxd3 (White to play) > >00:00 02.01 -2.05 5.Rxd3 Bxd3 6.Qxd3 Qxb2 7.Bxc6 >00:00 03.00 -1.47 5.Rxd3 Bxd3 6.Qh5+ Kg8 7.Bxc6 Rxc6 8.Rxc6 >00:02 04.00 -1.73 5.Rxd3 Bxd3 6.Qh5+ Kg8 7.Bxc6 Bg6 8.Qh6 >00:06 05.00 -1.86 5.Rxd3 Bxd3 6.Qxd3 Qxb2 7.Bxc6 Qxc1+ 8.Bxc1 Rxc6 9.Bh6 >00:19 06.00 -2.08 5.Rxd3 Bxd3 6.Qxd3 Qxb2 7.Qd1 a4 8.Qh5 Kg8 9.Qg5+ >01:07 07.00 -0.96 5.Rxd3 Bxd3 6.Qxd3 Nxe5 7.Rxc8+ Rxc8 8.Bxe5 Rc1+ 9.Kh2 Bc5 >10.Bxd4 Bxd4 >01:56 08.00 -1.15 5.Rxd3 Bxd3 6.Qxd3 Nxe5 7.Rxc8+ Rxc8 8.Bxe5 Rc1+ 9.Kh2 Bc5 >10.Qe2 Qb1 >02:37 09.00 -1.36 5.Rxd3 Bxd3 6.Qxd3 Nxe5 7.Rxc8+ Rxc8 8.Bxe5 Bf8 9.Qd1 Bh6 >07:10 10.00 -1.09 5.Rxd3 Bxd3 6.Qxd3 Nxe5 7.Rxc8 Rxc8+ 8.Bxe5 Bf8 9.Qd1 Bh6 >14:12 11.00 -0.74 5.Rxd3 Bxd3 6.Qxd3 Nxe5 7.Qxd4 Rxc1+ 8.Bxc1 Bxf6 9.Qf4 Kg8 >10.Bxa8 Qb3 >14:12 12.00 -0.64 5.Rxd3 Bxd3 6.Qxd3 Nxe5 7.Rxc8+ Rxc8 8.Bxe5 Bf8 9.Qd1 Bh6 >27:46 13.00 -0.69 5.Rxd3 Bxd3 6.Qxd3 Nxe5 7.Rxc8+ Rxc8 8.Bxe5 Qa1+ >26:55 14.00 -0.56 5.Rxd3 Bxd3 6.Qxd3 Nxe5 7.Rxc8+ Rxc8 8.Bxe5 Qa1+ > >A correction of what I posted, in that last piece of analysis White is still >down 0.56 pawns of course so 4. ..Nxd3 might be an alternative for Black. >Fourteenth ply result was just in. Another possibility is defending the Bishop >and seventh row with 4. ..Rfe8, if on the second move Black places his other >rook on the c-line, 2. ..Ra8-c8 instead of 2. ..Rf8-c8. That is a line Jeremiah >Penery gave, I'm not sure where the original analysis came from, in his post >about the Nolot-positions and DeepThought results too, maybe it is worth a >re-repost: > >-------------------------------------------------------------------------------- > >Position #9 > >r4r1k/4bppb/2n1p2p/p1n1P3/1p1p1BNP/3P1NP1/qP2QPB1/2RR2K1 w - - > > +---+---+---+---+---+---+---+---+ >8 | *R| | | | | *R| | *K| > +---+---+---+---+---+---+---+---+ >7 | | | | | *B| *P| *P| *B| > +---+---+---+---+---+---+---+---+ >6 | | | *N| | *P| | | *P| > +---+---+---+---+---+---+---+---+ >5 | *P| | *N| | P | | | | > +---+---+---+---+---+---+---+---+ >4 | | *P| | *P| | B | N | P | > +---+---+---+---+---+---+---+---+ >3 | | | | P | | N | P | | > +---+---+---+---+---+---+---+---+ >2 | *Q| P | | | Q | P | B | | > +---+---+---+---+---+---+---+---+ >1 | | | R | R | | | K | | > +---+---+---+---+---+---+---+---+ > a b c d e f g h > >Weinstein - Elyoseph, Israel 1992 > >1. Ng5!! hxg5 2. hxg5! Rac8 3. Nf6!! Nb8 > 3. ...gxf6 4. gxf6 Rfe8 5. Qh5 Rg8 6. Rxc5! here Gambit Tiger likes Bxc6 >Bg6! 7. Qh4 Bxc5 > 8. Be4 Ne7 9. Kg2 Qd5 10. Bxd5 +- >4. Qh5 Bxf6 5. gxf6 gxf6 6. Rxc5 Rxc5 7. Be4 f5 8. Kg2 Rg8 9. Rh1 Rg7 >10. Bh6 Nd7 11. Bxg7+ Kxg7 12. Qxh7+ > >After 9 minutes, it played 1. Nf6, expecting 1. ...Rfc8 2. Nxh7 Kxh7 3. Ra1. >The score was slightly nagative for white. On longer searches, it went up >to half a pawn and creeping up. > >-------------------------------------------------------------------------------- > >The line with 3. ..gxf6 only ends with +- so it is not an outright win for White >not even in this side-line. But Howard it seems your gut feelings were not so >far off! > >Elyoseph by the way I think could be a Fide-master from Israel, Yahoo turned up >this reference in the Fide Elo-list: > >2800381 Elyoseph, Harel................. f ISR 2310 0 i > >No Mr. Weinstein in the Fide list, maybe it was Kasparov travelling in disguise >under his old name, Harry Weinstein! > > Eelco
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