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Subject: Re: Test Position

Author: chandler yergin

Date: 05:15:28 11/17/04

Go up one level in this thread


On November 17, 2004 at 01:58:53, Uri Blass wrote:

>On November 17, 2004 at 01:24:31, chandler yergin wrote:
>
>>The Eval shows =
>>??
>
>??
>= does not mean draw.

Means Equal


>
>It seems that you ignore the numbers.

No, That's why my ??.
Most Programs would show a clear - +  Eval when Black is winning.

>
>=3.25 means that the side to move is 3.25 pawns up.

Well that's confusing and can't be correct.

From your logic..
"6. Kh2-g1 Rd8-d3 7. Rf1-f4 Qg4xg3 8. Qg2xg3 Rd3xg3
 = (3.25)"
Means White is to move, and is 3.25 pawns up!


>
>>How does White lose?
>
>>>1... Nd5-f4 2. Qe2-f2 Nf4xg2 3. Rd2xd8 Rh8xd8 4. Qf2xg2 b7-b6 5. Ra1-f1 Qg6-g4
>>>6. Kh2-g1 Rd8-d3 7. Rf1-f4 Qg4xg3 8. Qg2xg3 Rd3xg3
>>> = (3.25)	Depth: 15/35	00:02:07.13	196517kN (1546 KN/s, 2388 splits, 211 aborts)
>
>It is clear that black has a big advantage as movei can also confirm
>
>depth=14 +1.90 d5f4 e2f2 f4g2 d2d8 h8d8 f2g2 b7b6 a1f1 g6d3 g2f2 d3d2 h2g1 d2f2
>f1f2 d8d1 f2f1 d1d2 f1f6
>Nodes: 443349636 NPS: 531836
>Time: 00:13:53.62
>
>Unfortunately movei needs more time than zappa to find Nf4 and it needs 7
>minutes for that.
>
>428703 <first :  12 125 41951 222119448 h8f8 e2e1 d5b4 d2d8 f8d8 e1e3 b7b6 a1f1
>g6h5 e3f4 g7g8 f4f6 d8e8
>447000 <first : 12 126 43782 231624477 d5f4
>454469 <first :  12 131 44529 235734228 d5f4 g3f4 d8d2 e2d2 h8h4 h2g1 g6g3 g1f1
>g3h2 d2e3 h4f4 f1e1 f4f5 g2e4 f5e5
>
>The score for Nf4 later goes up but zappa is still clearly faster than movei in
>getting depth 15.
>
>depth=15 +1.98 d5f4 e2f2 f4g2 d2d8 h8d8 f2g2 d8d3 g2b7 e6d7 b7g2 d7c6 g2f2 d3f3
>f2g2 g6f5 h2g1 f5e5
>Nodes: 698511717 NPS: 540978
>Time: 00:21:31.20
>
>Movei still can only dream about 1546 Knodes per second at this moment.
>
>Uri



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