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Subject: Re: f4

Author: Uri Blass

Date: 00:06:11 01/29/03

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On January 29, 2003 at 02:16:41, Joshua Haglund wrote:

>On January 29, 2003 at 01:52:41, Joshua Haglund wrote:
>
>>F4 is not a clear win unless Junior is very bad... I analyzed Qa1+ vs f4 and I
>>found Qd1 was a clear draw and f4 was a draw also. If Kasparov could have won
>>with f4 it would have taken a rather bad move with Junior.
>>
>>Kasparov is the best,
>>
>>Joshua
>>toneewa@yahoo.com
>
>What would Junior's move be after f4?
>
>if h3 = loss
>if h4 = loss
>if Ra3 = draw
>if Nf1 = draw/loss

Hoe did you get this consequences.

I read a claim that h3 is a draw.
I do not see it but do not see a forced win.

some lines that I got with yace after some learning and long analysis in the
root.

15 -92 569786 2002838963 h4 Qa1+ Kh2 Qd1 Rb2 Qe2 Rb6 e3 Rxd6 Qg4 fxe3 Qg3+ Kg1
fxe3 Rb6 e2 Nf3 Rxf3
15 -83 915138 3168553083 h3 Qa1+ Nf1 Bd7 Qg5 e3 fxe3 fxe3 Qxe3 Qxf1+ Kh2 Qf6 Rc1

16 -82 1336005 296456932 Nf1 e3 Nxe3 Bf5 Rc1 Qb2 Rd1 fxe3 Qxe3 Bd3 h3 Bxc4


Note that yace learned that Nf1 e3 Ra8 is losing against Nd3

13 169 5161 22340762 Nd3 fxe3 fxe3 Qxf8+ Qxf8 Nxe3 Qe8 Re2 h6 a3 Kh7 g3 b6 Rb8
Qd8 Rd2

fxe3 in the last line is a desperate move that is a result of learning
Rxc8 Rxc8 fxe3 Re8...

Uri



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