Author: blass uri
Date: 01:27:53 01/29/00
Go up one level in this thread
On January 29, 2000 at 03:40:01, blass uri wrote: >On January 28, 2000 at 18:06:06, Torstein Hall wrote: > >>On January 28, 2000 at 17:57:46, Torstein Hall wrote: >> >>>On January 27, 2000 at 17:40:11, blass uri wrote: >>> >>>>On January 27, 2000 at 16:25:49, Torstein Hall wrote: >>>> >>>>>On January 27, 2000 at 06:44:50, blass uri wrote: >>>>> >>>>>>On January 27, 2000 at 05:35:01, stuart taylor wrote: >>>>>> >>>>>>>On January 27, 2000 at 02:18:23, Shanti wrote: >>>>>>> >>>>>>>>Hi >>>>>>>> >>>>>>>>Here it is :-) >>>>>>>> >>>>>>>>[Event "?"] >>>>>>>>[Site "?"] >>>>>>>>[Date "2000.01.21"] >>>>>>>>[Round "2"] >>>>>>>>[White "Soffer, Ram"] >>>>>>>>[Black "Fritz 6"] >>>>>>>>[Result "1-0"] >>>>>>>>[ECO "A06"] >>>>>>>>[PlyCount "49"] >>>>>>>> >>>>>>>>1. Nf3 c5 2. e3 Nf6 3. b3 d5 4. Bb2 Nc6 5. Bb5 Bd7 6. O-O e6 7. d3 Be7 8. Nbd2 >>>>>>>>O-O 9. Qe2 a6 10. Bxc6 Bxc6 11. Ne5 Qc7 12. f4 b5 13. Nxc6 Qxc6 14. Nf3 Nd7 15. >>>>>>>>Ne5 Nxe5 16. fxe5 c4 17. Bd4 b4 18. Rf2 c3 19. Raf1 a5 20. Qh5 Qe8 21. Rf6 Qb5 >>>>>>>>22. R1f3 Rfc8 23. Qxf7+ Kh8 24. Qxe7 Qe8 25. Rxe6 1-0 >>>>>>>> >>>>>>>>Bye, Shanti >>>>>>>> >>>>>>>>On January 27, 2000 at 00:49:44, Jouni Uski wrote: >>>>>>>> >>>>>>>>>thanks Jouni >>>>>>> >>>>>>> >>>>>>>Incredible! simple! instructive! Surely there was luck in it.He just made the >>>>>>>right efforts, and it turned out very well. >>>>>>> What were the main mistakes of computer, and what were the main anti-computer >>>>>>>moves of Ram Sofer? >>>>>>> We see that fritz abandoned his King, but was 14...Nd7 wrong? after that I >>>>>>>don't think it would have been easy even for a human as black, but what did he >>>>>>>do so bad before move 14? >>>>>>> 21.Rf6!! is the final blow, but wasn't it a bit of luck that such a move >>>>>>>existed? >>>>>>> I myself wouldn't have known to have played 15.Ne5.(blocking own bishop and >>>>>>>doubling pawns etc.but maybe the opening of f-file against weakly defended king >>>>>>>with so little mobility-made it a sure thing) Was this distinctly >>>>>>>anti-computer? >>>>>>> Stuart Taylor. >>>>>> >>>>>>I think that 20...Qe8 was the decisive mistake. >>>>> >>>>>I think its lost far earlier. How do you improve on 20...a4 21.Rf6 axb3 22.axb3 >>>>>g6 ( if 22...Qe8 23.R1f3 Ra1+ 24.Kf2 and prettu soon Rh3 and bye bye black. >>>>>)23.Qh6 Ra2 24.R1f3 and its all over like in the game. >>>> >>>>after axb3 axb3 chessmaster prefers Qa6 expecting Rxf7 >>>>if R1f3 Qa1+ Kf2?? Ra2 >>>> >>>>Uri >>> >>>Perhaps I was a bit fast. But I think black has it difficult if White improves >>>the line 20...a4 with 21.Rf3 If now 21...Qa6 then 22.Rh3 wins after 22...h6 >>>23.Rg3 Kh8 and again 24.Rh6! >>>So if we go back to the position after 20...a4 21.Rf3 I think its difficult for >>>black improve. White just has to time his attack after black defence so no >>>"evil" checks come in from the a line. :-) >>> >>>Torstein >> >>Whoops, I mixed it up a bit as I forgot the 21..axb 22.axb in between. >> >>I think I got it right if I say it like : >>But I think black has it difficult if White improves >>>the line 20...a4 with 21.Rf3 If now 21.axb axb 22...Qa6 then 23.Rh3 wins after 23...h6 24.Rg3 Kh8 and again 25.Rf6! >>So if we go back to the position after 20...a4 21.Rf3 >>[D]r4rk1/4bppp/2q1p3/3pP2Q/1p1B4/1PpPPR2/2P3PP/5RK1 b - - 0 22 >> >>I think its difficult for black improve. White just has to time his attack after >>black defence so no "evil" checks come in from the a line. :-) >> >>Torstein > >chessmaster6000(ss=10) cannot see a losing evaluation for black after 21.Rf3. >The main line begin with 21...axb3 22.axb3 Qc7 23.Rxf7 Qd7 > >It now considers h6 for a long time and may changes its mind to h6. >I do not see a win for white after h6 > >I gave it some hours to analyze but it could see axb3 axb3 Qc7 in a few minutes. > >Uri h6 is the last choice of chessmaster6000 after 4-5 hours. main line begin with h6 Rxf7 Qe8 The line with 21...axb3 22.axb3 Qc7 Rxf7 was not the from the last iteration It changes the move Rxf7 in this line in the last iteration. Chessmaster can see only an advantage of slightly more than 1 pawn for white both with 21...axb3 and with 21...h6 Uri
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