Author: Anthony Cozzie
Date: 17:19:35 05/12/04
Go up one level in this thread
On May 12, 2004 at 18:37:46, Will Singleton wrote:
>On May 12, 2004 at 18:07:07, Anthony Cozzie wrote:
>
>>On May 12, 2004 at 02:37:56, Will Singleton wrote:
>>
>>>[d]rn2k1r1/p4ppp/1pp1p3/8/P1NP2Q1/2B3P1/1P6/R3KB1q w Qq - 0 16
>>>
>>>This is Amateur-Djinn, from ICC today.
>>>
>>>16. O-O-O! Nd7 (16... Qd5 17. Bb4 h5 18. Qh4 +-) 17. d5! cxd5 18. Bh3 Qxd1+ 19.
>>>Qxd1! dxc4 20. Qd6 {game over}
>>>
>>>Djinn didn't play 18...Qxd1 in the game, but then we wouldn't have the
>>>opportunity to look at 19.Qxd1. And if 16.O-O-O is too hard, then try 17.d5 and
>>>19.Qxd1.
>>>
>>>Here's the position from 17.d5, Amateur, on a p4 2.8ghz:
>>>
>>>[d]r3k1r1/p2n1ppp/1pp1p3/8/P1NP2Q1/2B3P1/1P6/2KR1B1q w q - 0 17
>>>
>>>12 111 5543 19661523 d5 cxd5 Bh3 Qh2 Nd6 Ke7
>>>13 109 7269 25641213 d5 cxd5 Bh3 Qh2 Nd6 Ke7 Nxf7 Nc5 Bb4 Re8 Ng5 Kd7 Rxd5 Kc6
>>>Nf3 Qh1 Rd1
>>>14 200 19349 67027183 d5 cxd5 Bh3 Qxd1 Qxd1 dxc4 Qd6 Rd8
>>>
>>>Note: the move 19.Qxd1 (not Kxd1) is critical in the above line.
>>
>>
>>Zappa prefers Qf4 even at 18 ply.
>>
>>1. Qg4-f4 Nb8-d7 2. Nc4-d6 Ke8-e7 3. Bc3-b4 f7-f6 4. Ke1-c1 Ke7-f8 5. Nd6-e4
>>Kf8-e8 6. Rd1-e1
>> = (1.76) Depth: 9/24 00:00:04.48 2406kN
>>1. Qg4-f4 Nb8-d7 2. Nc4-d6 Ke8-e7 3. Bc3-b4 f7-f5 4. Nd6xf5 Ke7-d8 5. Nf5-e7
>>c6-c5 6. Ne7xg8 c5xb4 7. Ra1-c1 Ra8-c8 8. Qf4-g5 Nd7-f6 9. Rc1xc8 Kd8xc8 10.
>>Ng8xf6 g7xf6 11. Qg5-g8 Kc8-c7 12. Qg8xe6
>> = (3.86) Depth: 18/45 09:22:07.64 23989842kN
>>
>>anthony
>
>That's a big score, I'll check it at home later.
After 0-0-0:
1... Nb8-d7 2. Nc4-d6 Ke8-f8 3. Bc3-b4 c6-c5 4. d4xc5 b6xc5 5. Bf1-b5 Qh1-h6 6.
Bb4-d2 Qh6-g6 7. Qg4-c4 Ra8-d8 8. Nd6-b7 a7-a6 9. Nb7xd8 a6xb5 10. Qc4xb5
= (-2.44) Depth: 14/38 00:10:36.38 449162kN
1... Qh1-h6 2. Bc3-d2 f7-f5 3. Qg4-f3 g7-g5 4. Rd1-e1 Ke8-d8 5. Qf3-a3 Kd8-c8 6.
Nc4-d6 Kc8-c7 7. Bf1-c4 Nb8-d7 8. Re1xe6 Rg8-g6 9. Nd6xf5 Qh6-h1 10. Re6-e1
= (-2.32) Depth: 14/38 00:17:40.22 741391kN
Zappa's branching factor is amazingly bad here.
anthony
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