Author: Will Singleton
Date: 22:24:35 05/12/04
Go up one level in this thread
On May 12, 2004 at 17:21:00, Will Singleton wrote:
>On May 12, 2004 at 16:09:39, John Merlino 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.
>>
>>Here's what CM_SKR says on an AMD 2500+ for each of the three positions you ask
>>about:
>>
>>16. The King is pretty happy with Qf4
>
>Qf4 is an alternative, but doesn't lead to the kind of convincing scores seen
>after castling first. (imvho)
>
>>Time Depth Score Positions Moves
>>0:00 1/3 0.85 1823 16.Qf4 f6 17.O-O-O Nd7
>>0:00 1/4 1.15 4592 16.Qf4 f6 17.O-O-O Nd7 18.Be2
>>0:00 1/5 1.12 18201 16.Qf4 f6 17.O-O-O Nd7 18.Re1 Kf7
>>0:00 1/6 0.89 54606 16.Qf4 f6 17.Qg4 Ke7 18.Qf4 Rd8
>> 19.O-O-O
>>0:01 1/7 1.12 197245 16.Qf4 f6 17.Qc7 Nd7 18.O-O-O Rd8
>> 19.Be2 Qh6+ 20.Bd2 Qh2
>>0:03 1/8 0.97 711348 16.Qf4 Nd7 17.Nd6+ Ke7 18.Bb4 f6
>> 19.Ne4+ Kd8 20.O-O-O g5
>>0:07 1/8 1.09 1809117 16.a5 b5 17.Nd6+ Ke7 18.Ne4 Qh6
>> 19.Bb4+ Kd8 20.Bd2 f5
>>0:10 1/9 1.18 2596916 16.a5 b5 17.Nd6+ Ke7 18.Qf4 Na6
>> 19.Ne4 Rgd8 20.O-O-O Kf8 21.Bxb5
>> Qxd1+ 22.Kxd1 cxb5
>>0:20 1/10 1.10 5361855 16.a5 b5 17.Nd6+ Ke7 18.Qf4 Na6
>> 19.Ne4 Rgd8 20.O-O-O f5 21.Bd3 Qh5
>>0:38 1/10 1.21 10621921 16.Qf4 f6 17.Qc7 Nd7 18.O-O-O Qd5
>> 19.Re1 Rf8 20.Bh3 f5 21.b3 Ke7
>>1:17 1/11 1.40 21411519 16.Qf4 Nd7 17.Bb4 f6 18.O-O-O c5
>> 19.dxc5 Qh6 20.Qxh6 gxh6 21.c6
>> Nc5 22.Nd6+ Ke7
>>3:49 1/12 1.81 64823123 16.Qf4 f6 17.Qc7 Nd7 18.O-O-O Qd5
>> 19.Ne5 Nxe5 20.dxe5 Qf3 21.Qd7+
>> Kf8 22.Bc4 Qe3+ 23.Bd2 Qxe5 24.Bxe6
>>
Yes, I'm pretty sure 16...f6 isn't really playable. Better is the line Zappa
showed.
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