Author: Albert Silver
Date: 22:42:24 03/01/01
Go up one level in this thread
On March 01, 2001 at 22:28:39, Albert Silver wrote:
>On February 28, 2001 at 11:34:45, Uri Blass wrote:
>
>>This position could happen in deeper blue kasparov after 45...Qe3 46.Qxd6 Re8
>>47.Qd7+ Re7 48.Qc6
>>
>>[D]8/4rkp1/R1Q2p1p/1p1PpP2/1Pp1B3/2P1q2P/6P1/5K2 b - - 0 1
>>
>>Is it a draw?
>>What is your opinion?(I did not analyze it enough to know).
>>
>>Uri
>
>Uri,
>
> Your move is VERY tough and it is possible that it refutes the draw
>evaluation. There are however a few lines that need to be analyzed in detail
>before changing the verdict.
>
>I moved this one move earlier to answer the question, "what about Kf8?"
>
>[D]4r3/3Q1kp1/R4p1p/1p1PpP2/1Pp1B3/2P1q2P/6P1/5K2 b - -
>
> The first is of course the mainline from your idea:
>
>a) 47.Qd7+ Re7 (47...Kf8 48.Ra7 Qf4+ 49.Bf3 Qc1+ 50.Kf2 Qd2+ 51.Kg1 Qe3+ 52.Kh2
>Qf4+ 53.g3) 48.Qc6 Qf4+ 49.Bf3 Qc1+ 50.Kf2 Qd2+ 51.Kg1 Qe3+ 52.Kh2 Qf4+ 53.g3
>Qxf3 54.d6 Qxc6 55.Rxc6 Re8 (55...Rd7 looks terrible and I have few doubts it
>loses) and in this line all depends on whether or not Black can save the
>endgame.
>
>Ex: 56.Kg2 Ra8 57.Kf3 Ra2 (57...Ra3 58.Rc7+ Ke8 59.Ke4 Rxc3 60.Kd5) 58.Rc7+ Ke8
>59.Rxg7 Rd2 60.Re7+ Kd8 61.Re6 Rd3+ 62.Ke4 and White looks winning but the line
>isn't forced and rook endings can be very tricky.
>
>b) The other serious attempt is 47.Qd7+ Re7 48.Qc6 Qxe4 49.d6 Qb1+ ( 49...Qxc6
>50.Rxc6 looks like line a) but the differences need analyzing also) 50.Kf2 Qxf5+
>51.Kg1 Rd7 52.Qxb5 Qe6 53.Qc5 and... it looks good for White but again it would
>need proper analysis to confirm.
>
Spoke too fast, and apologize. I had another line that seemed quite promising,
but hadn't bothered to analyze properly, and now it goes something like this:
45...Qe3 46.Qxd6 Re8 47.Qd7+ Re7 48.Qc6 Qxe4 49.d6 Qd3 50.Kg1 Re8 51.Qc7+ Kg8
(51...Kf8 52.Ra1 the most promising attempts to prevent the perpetual seem to be
through repatriating the rook to help cover the king) 52.Ra1 Qxc3 53.Rf1 Rf8
54.d7 Qe3 55.Kh2 Qd4 56.Rf3 Kh8 57.Qc8 Qd6 and the position looks equal though
complicated.
Albert
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