Author: pete
Date: 05:23:22 12/12/00
Go up one level in this thread
On December 11, 2000 at 23:39:29, Jon Dart wrote:
>On December 11, 2000 at 15:28:12, Peter Berger wrote:
>
>>>
>>arasan.24 is incorrect: ...a6 loses to h6! (+7.50 at ply 13 )
>
>As noted in your followup, the solution given is .. Kg7.
As noted in my followup to my followup ..Kg7 is _no_ solution though :-)
Crafty 17.13 :
15-> 97:20 -5.18 1. ... Kg7 2. h6+ Kxh6 3. Qf6 Ne5 4.
Bf8+ Rxf8 5. Qf4+ Kg7 6. Qxe5+ Kg8
7. Qxc7 Qxc7 8. Rxc7 Nb2 9. Bc2 b5
10. Raxa7 Nc4 11. Kh2
>>arasan.88 is dubious : ..Bxf3 is just as good as ...Nxf2 in Fritz' and my humble
>>opinion (same idea)
>
>I'm not sure about this. If I force Crafty to search only Bxf3, I get:
>
>
> 14-> 6:17 -0.48 1. ... Bxf3 2. hxg4 Bxg2 3. Kxg2 Bxd4
> 4. Rd1 Bxe5 5. Be2 Rd8 6. Qxa6 Qxa6
> 7. Bxa6 O-O 8. Bb5 Nc5 9. Rxd8 Rxd8
> 15 9:31 -- 1. ... Bxf3
>It's failing low but didn't complete ply 15 so I'm not sure how bad it is.
>Nxg2 looks better.
Not by much though it seems ; the position isn't that good anyway . I let Crafty
17.13 search both ...Bxf3 and ...Nxf2 . Here is what I got :
17-> 86:48 -1.09 1. ... Bxf3 2. hxg4 Bxg2 3. Kxg2 Bxd4
4. Rd1 Rd8 5. f4 Bxb2 6. Rb1 Qd4 7.
Qxd4 Bxd4 8. Bxa6 Nc5 9. Bb5+ Ke7 10.
Rb4 Bc3
17-> 204:33 -0.85 1. ... Nxf2 2. Rxf2 Bxf3 3. Rxf3 Bxd4+
4. Kh1 Rd8 5. Bg5 O-O 6. Bxd8 Rxd8
7. Be4 Qc5 8. Rd1 Nxe5 9. Rb3 Nc4 10.
Qxa6 Nxb2
To call ...Nxf2 the best move needs additional proof IMHO . Remains a little
dubious.
Greetings.
pete
>
>>arasan.92 : solved ( I think this is the most difficult one ! )
>>arasan.131: solved (very difficult, too !)
>>arasan.143: solved (another great one :-) ! )
>>arasan.150: solved
>>arasan2.11: typo in FEN string , Rb8 is correct ( solved by both Crafty and
>>Fritz )
>>arasan2.14 : ...Ke3 looks best but seems to lose,too :2.Bc8 g3 3.hxg3
>> hxg3 4.Kf1 Ke4! 5.Bb7+!; both Crafty and Fritz don't do too well
>>here , Crafty being
>> the better one .
>
>I think Black can't save this but it still may be a good test as it is
>interesting to see how long a program takes to reject g3.
>
>--Jon
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