Author: Uri Blass
Date: 10:45:58 08/30/00
Go up one level in this thread
On August 30, 2000 at 11:40:32, kurt wrote:
>On August 30, 2000 at 10:57:35, Robert Hyatt wrote:
>
>>On August 30, 2000 at 08:13:24, Alexander Kure wrote:
>>
>>>On August 30, 2000 at 05:06:11, Paulo Soares wrote:
>>>
>>>>On August 30, 2000 at 01:12:10, Tim Mirabile wrote:
>>>>
>>>>>On August 30, 2000 at 00:53:18, kurt wrote:
>>>>>
>>>>>>>I had another look at the position and could not find a win for white.
>>>>>>>after 25.Ne6 fe6 26.f7 Ke7 holds for black. I will look at it some more.
>>>>>>>Does crafty find a way out?
>>>>>>>Have a good night!
>>>>>
>>>>>27.Rg6 Qe5 28.Nd5+ exd5 29.Rxd5 wins.
>>>>
>>>>The lines below shows that without doubt, 20. Nxe6, is a winner move.
>>>>
>>>>Paulo Soares, from Brazil
>>>>1r2kb1r/2qb1p2/p3NP2/1pp5/4P2p/P1N2Q2/2P4P/1K1R1BR1 b k - 0 20
>>>>
>>>>20... Bxe6 (20... fxe6 {0} 21. f7+ Ke7 22. Rg6
>>>>Qe5 23. Nd5+ exd5 24. Rxd5 Bg7 25. Rxe5+ Bxe5 26. Bh3 {+-}) 21. Nd5 Qc6 (21...
>>>>Qxh2 22. Bh3 Bxd5 23. exd5 Qd6 24. Rg7 {+-}) (21... Bxd5 22. Rxd5 c4 (22... b4
>>>>23. Bh3 bxa3+ 24. Ka2 Rb2+ 25. Ka1 Rb8 26. Qc3 Bd6 27. e5 {+-}) (22... Bh6 23.
>>>>Qf5 Be3 24. Bh3 Bxg1 25. Rd7 {+-}) 23. Bh3 b4 24. Bd7+ Qxd7 25. Rxd7 Kxd7 26.
>>>>Qf5+ {+-}) (21... Qe5 22. Rg5 Qd6 (22... Qxg5 23. Nc7#) 23. Nf4 Qc7 24. Nxe6
>>>>fxe6 25. Bh3 {+-}) 22. Bh3 Bxh3 23. Qxh3 c4 (23... b4 24. Rg5 bxa3+ 25. Ka1 Bh6
>>>>26. Qf5 Qd6 27. Rh5 {+-}) (23... Rd8 24. Qf5 {+-}) (23... Rc8 24. Rg5 Bd6 25.
>>>>Ne3 {+-}) 24. Qf5 Bd6 25. Nb4 Qd7 26. Qxd7+ Kxd7 27. e5 {+-}
>>>
>>>
>>>There is no win after 21. Nxe6 Bxe6 22. Nd5 Qxh2 23. Bh3 because of the line:
>>>23...b4! 24. Bxe6 bxa3+ 25. Ka1 Bd6! which threatens Be5+, for example
>>>
>>>1) 26. Bxf7+ Kxf7 unclear
>>
>>
>>This looks better for black but there is no reason for white to go into this
>>line.
>>
>>
>>
>>26 Nc3 fxe6 e5 opens things up and may simplify into a certainly non-lost
>>pawn-up ending for white as a better choice here. If white loses his
>>nerve, Bxf7 looks like it leads to a draw if white wants a perpetual. Nc3
>>looks like it leads to more.
>>
>>
>>>2) 26. Rg2 Qe5+ 27. c3 fxe6 (27...Qxe6? 28. e5 Bxe5 29. Re2 Kf8 30. Rde1 +-)
>>> 28. f7+ Kd7 again with an unclear position
>>>
>>>Instead of 23. Bh3 the move 23. e5 looks more convincing.
>>>
>>>Greetings
>>>Alex
>>
>>
>>I haven't studied 23. e5 to any extent, yet...
>>
>>White wins : 23.e5 Qe5 24.Nb4 exposes blacks poor king position
>>kurt
23.e5 is the simplest way for white to win.
23.e5 Qxe5 24.Rg5 Qd6 25.Nf4 is the main line of chessmaster(ss=10).
Chessmaster6000(ss=10)(after a long time) says that the best for black after
these moves is 25...Qxd1+(6.35 pawns advantage for white)
Uri
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