Author: Matthias Gemuh
Date: 00:44:41 12/09/01
Go up one level in this thread
On December 08, 2001 at 20:28:18, K. Burcham wrote: > > >17...Nxg5 >will your program play Nxg5 and lose the queen? > > [D] r4rk1/1bp3pp/1pn1q3/p2p1pN1/3Pn3/PPN1P1P1/2Q2PBP/R1R3K1 b - - > >this is a very interesting line to study. >so far i am very fascinated with this queen sac. > >at this time it is hard for me to see what the program >thinks it was getting for the queen sacrifice. >the sacrifice did not pay back for the queen until many moves later, >which the program could not see at the time. >since this was not for material, then what? >did knowledge drive this play? >if you answer yes, then could you explain blacks advantage after >20...Nxe6. because in this position the program could not see the >win at all. here is the position after the queen loss. > > [D] r4rk1/1bp3pp/1p2n3/p4p2/8/PPN1PnP1/2Q2P1P/R1R4K w - - > > >if you play through the line, your program will finally score + for black after >several moves, after losing its queen. >i will study this line some more, but so far this seems to be >a fantastical queen sacrifice, losing material but gaining the position, >for the win. > >after 43.Nc3 black is up 5+ points and game is over for white > > [D] 4r1k1/6p1/7p/pb5P/1Pp5/P1Nn1r2/2KR4/Q7 b - - > >17... Nxg5 18. Bxd5 Nf3+ 19. Kh1 Ncxd4 20. Bxe6+ Nxe6 >21. Qa2 Nd2+ 22. Kg1 Ng5 23. f3 Ndxf3+ 24. Kf1 Rf7 >25. Rd1 Ne5 26. h4 Ngf3 27. Ke2 Ng4 28. Nd5 Nfe5 >29. Rd4 c5 30. Rd2 Re8 31. h5 h6 32. Nxb6 Ba6+ >33. Kd1 Nxe3+ 34. Kc1 f4 35. gxf4 Rxf4 36. Kb2 Nf1 >37. Nd5 Rf3 38. Rxf1 Rxf1 39. Kc3 Rf3+ 40. Kc2 c4 >41. b4 Nd3 42. Qa1 Bb5 43. Nc3 > >kburcham HyLogicChess wants to play: [1] (-1.08) 1 ...Nxg5 (00h:00m:00s) [2] (-1.08) 1 ...Nxg5 2.Bxd5 (00h:00m:00s) [3] (-0.94) 1 ...Nxg5 2.Bxd5 Nh3 (00h:00m:00s) [4] (-1.20) 1 ...Nxg5 2.Bxd5 Nh3 3.Kf1 (00h:00m:00s) [5] (1.04) 1 ...Qd6 2.Ngxe4 fxe4 3.Ncxe4 dxe4 (00h:00m:47s) [6] (1.04) 1 ...Qd6 2.Ngxe4 fxe4 3.Ncxe4 dxe4 4.Bxe4 (00h:02m:06s) [7] (1.52) 1 ...Qd6 2.Nxd5 Nxg5 3.Nxc7 Qxc7 4.Qc4 Rf7 (00h:05m:25s) Regards, Matthias.
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