Author: Jeremiah Penery
Date: 09:06:43 11/27/00
Go up one level in this thread
On November 25, 2000 at 13:20:31, Joshua Lee wrote:
>1 Nxh6 11Ply 1:29:14 611,200,000 -/+ -.99
> 11Ply 1:46:32 733,000,000 =/+ -.30
>
>
>4 Nxe6 12Ply 17:53 149,700,000 +/- +.75
> 12Ply 18:45 157,500,000 +/- +.91
For these two positions, what are the lines given? I suspect that it really
isn't solving #1, but just grabbing the pawn on h6. The only way to "solve" the
position is to see the crushing moves:
26. Nxh6!! c3 {26. ...Rxh6!? 27. Nxd6 Qh5 28. Rg5! Qxd1 29. Nf7+ Kg8 30. Nxh6+
Kh8 31. Rxd1 c3 32. Nf7+ Kg8 33. Bg6! Nf4 34. Bxc3 Nxg6 35. Bxb4 Kxf7 36. Rd7+
Kf6 37. Rxg6+ Kxg6 38. Rxb7 +-} 27. Nf5! cxb2 28. Qg4 Bc8 {28... g6!? 29. Kh2!
Qd7 30. Nh4 Bc6 31. Nc5! dxc5 32. Rxe6 Nf6 33. Nxg6+ Kg7 34. Qg5 Nbd5 35. Ne5
Kh8 36. Nxd7 +-} 29. Qh4+ Rh6 30. Nxh6 gxh6 31. Kh2! Qe5 32. Ng5 Qf6 33. Re8 Bf5
34. Qxh6 {34. Nf7+ Qxf7 35. Qxh6+ Bh7 36. Rxa8 Nf6 37. Rxf8 Qxf8 38. Qxf8+
Ng8 39. Qg7#} 34. ...Qxh6 35. Nf7+ Kh7 36. Bxf5+ Qg6 37. Bxg6+ Kg7 38. Rxa8 Be7
39. Rb8 a5 40. Be4+ Kxf7 41. Bxd5+ +-
As for solving #4, I think it could some of the correct moves, but I doubt it's
found a crushing line there either, although it's easier to argue this one was
solved than the first one. Here's the line:
10. Nxe6!! Qxe6 11. Nd5 Kd8 12. Bg4 Qe5 13. f4 Qxe4 {13. ...Qxb2 14. Bxd7 Bxd7
15. Rb1 Qa3 16. Nxf6 Bb5 17. Qd4 Qc5 18. Rfd1 +-} 14. Bxd7 Bxd7 15. Nxf6 gxf6
16. Bxf6+ Kc7 17. Bxh8 +-
>11 Rxh6 11Ply 5:10 36,600,000 -+ 2.38
> 14Ply 35:22 271,950,000 =/+ -.30
This one is interesting, and I have no doubt that Gandalf found the correct
line. The reason it's interesting is that it was originally thought a win for
white, but when DT-2 tested the Nolot positions they found that black could
probably force a draw:
1. Rxh6!! Nxh6 {1. ...Rxh6 2. Bxf7+ Rxf7 3. g8=Q+} 2. Qg5 Nf7 3. Qd8+!! Nxd8 4.
h6 Qd4!! 5. h7+ Kf7 6. g8=Q+ Ke7 7. h8=Q Kd6 8. Rg7 Qxd2!! 9. Qxd8 Kc5 10. Rxd7
Bxd7 11. Qxa8 Kb4 12. Qxa7 Qe1 13. Kb2 Qc3 1/2-1/2 as white cannot escape the
black checks.
However, I was analyzing these recently (again :) and found what appears to be a
winning line for white: 12. Qh1!!, preventing the black queen from checking on
the first rank and also covering some key diagonal squares. All I found from
this point were winning lines for white, but I'm not 100% sure about it. Is it
truly a white win?
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