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Subject: Re: Test suite link.

Author: Uri Blass

Date: 03:05:50 11/14/02

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On November 14, 2002 at 05:37:56, Gian-Carlo Pascutto wrote:

>On November 14, 2002 at 05:21:51, Uri Blass wrote:
>
>>[D]4rbk1/1q3ppp/2Rr4/1p1P1B2/2b1PR2/p5P1/5P1P/B1Q3K1 w - - 0 1
>>bm Bxh7+
>
>Deep Sjeng thinks Rxd6, Rh4 and Bxg7 are all better than Bxh7.
>
>--
>GCP

Movei has no next best mode but here is the analysis after Rh4 and after Bxg7
Based on it's scores there is no big difference between Rh4 Bxg7 and Bxh7+

After Rh4 Movei gets

depth=11 -2.55 f7f6 f5h7 g8f7 h7g6 f7g6 c1d1 c4e2 d1e2 d6d5 e4e5 g6f7 e2h5 f7g8
h5e8 d5d1 g1g2 d1a1 e8e6 b7f7 e6f7 g8f7 e5f6
Nodes: 11061231 NPS: 165290
Time: 00:01:06.92
depth=11 -2.54 d6g6(wrong fail high)
Nodes: 22264638 NPS: 162551
Time: 00:02:16.97
depth=11 -2.55 f7f6 f5h7 g8f7 h7g6 f7g6 c1d1 c4e2 d1e2 d6d5 e4e5 g6f7 e2h5 f7g8
h5e8 d5d1 g1g2 d1a1 e8e6 b7f7 e6f7 g8f7 e5f6
Nodes: 31789876 NPS: 161460
Time: 00:03:16.89
depth=12 -2.20 f7f6 f5h7 g8f7 h7g6 f7g6 c1d1 c4e2 d1e2 d6d5 e4e5 g6f7 e2h5 f7g8
h5e8 d5d1 g1g2 d1a1 e8e6 b7f7 e5f6 f7e6 c6e6 g7f6 e6f6
Nodes: 64108226 NPS: 167406
Time: 00:06:22.95

I guess that it needs depth 13 to see a significant fail low.


Anlaysis after Bxg7

depth=11 -2.60 d6c6 d5c6 b7c6 g7f6 f8g7 f6g7 g8g7 f4g4 g7f8 c1a3 e8e7 f5h7 f7f6
h7f5
Nodes: 30104711 NPS: 163951
Time: 00:03:03.62
depth=11 -2.59 b7c6
Nodes: 37195992 NPS: 165440
Time: 00:03:44.83
depth=11 -2.55 b7c6 d5c6 f8g7 c1a3 d6d1 g1g2 c4f1 g2f3 d1d3 a3d3 f1d3 c6c7 g7e5
c7c8q e8c8 f4g4 g8f8 f5c8
Nodes: 43210073 NPS: 166487
Time: 00:04:19.54
depth=11 -2.54 f8g7
Nodes: 52242651 NPS: 167369
Time: 00:05:12.14
depth=11 -1.85 f8g7 c6d6 h7h5 c1a3 e8a8 a3c5 g7e5 f4h4 a8a1 g1g2 c4f1 g2f3 e5d6
c5d6
Nodes: 62845997 NPS: 167228
Time: 00:06:15.81
depth=11 -1.85 f8g7 c6d6 h7h5 c1a3 e8a8 a3c5 g7e5 f4h4 a8a1 g1g2 c4f1 g2f3 e5d6
c5d6
Nodes: 70437695 NPS: 165747
Time: 00:07:04.97

depth=12 -1.99 f8g7 c6d6 h7h5 d6d7 b7a8 f5e6 e8e6 d5e6 a3a2 e6f7 c4f7 f4f7 a2a1q
f7g7 a1g7 d7g7 g8g7
Nodes: 92604482 NPS: 166318
Time: 00:09:16.79

Uri



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