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Subject: Re: would someone test this position with Tiger15 and latest crafty version

Author: Gerd Isenberg

Date: 14:09:58 11/07/02

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On November 07, 2002 at 12:09:49, Ulrich Tuerke wrote:

>The DOS-Comet (on AMD/700) selects Bxg6 immediately and sticks to it although
>the score keeps on oscillating a bit:
>
>Comet-B.50    Thu Nov  7 18:01:04 2002
>
>depth	score	  sec	  nodes		  pv
> 1.	+2.29	    0	      920	 c2c6
> 2.	+1.85	    0	     1495	 c2c6  e8d6
> 3.	+2.53	    0	     3989	 c2c6  e8d6  h5g4
> 4.	+2.27	    0	    16545	 h5g6  h7g6  c2g6  e8g7
> 4.	+2.27	    0	    18567	 h5g6  h7g6  c2g6  e8g7
> 5.	+2.81	    0	    53927	 h5g6  h7g6  c2g6  e8g7  a1c1  a8c8  c1c2
> 5.	+2.81	    0	    56939	 h5g6  h7g6  c2g6  e8g7  a1c1  a8c8  c1c2
> 6?	+2.67	    1	   372685	 h5g6  h7g6  c2g6  e8g7  g6g7  e7g7  g5g6
> 6?	+2.40	    3	   625143	 h5g6  h7g6  c2g6  e8g7  g6g7  e7g7  a1c1
> 6.	+2.39	    3	   687663	 h5g6  h7g6  c2g6  e8g7  a1c1  e7d6
> 6.	+2.39	    3	   698427	 h5g6  h7g6  c2g6  e8g7  a1c1  e7d6
> 7?	+2.25	    4	   796132	 h5g6  h7g6  c2g6  e8g7  a1c1
> 7?	+1.98	    5	  1015341	 h5g6  h7g6  c2g6  e8g7  a1c1
> 7!	+1.98	    7	  1211842	 h5g6  h7g6  c2g6  e8g7  g6h7  g8f7  h1h6
> 7.	+1.98	    7	  1211842	 h5g6  h7g6  c2g6  e8g7  g6h7  g8f7  h1h6
> 8!	+2.11	    7	  1285067	 h5g6  h7g6  c2g6  e8g7  g6h7  g8f7  h1h6
> 8?	+2.11	   11	  2002215	 h5g6  h7g6  c2g6  e8g7  g6h7  g8f7  h1h6
> 8.	+2.11	   14	  2362916	 h5g6  h7g6  c2g6  e8g7  g6h7  g8f7  h1h6
> 9?	+1.97	   33	  6194490	 h5g6  h7g6  c2g6  e8g7  g6h7  g8f7  h1h6
> 9!	+1.97	   43	  7604098	 h5g6  h7g6  c2g6  e8g7  a1c1  f8c8  g6h7
> 9.	+1.97	   43	  7604098	 h5g6  h7g6  c2g6  e8g7  a1c1  f8c8  g6h7
>10!	+2.10	   47	  8511407	 h5g6  h7g6  c2g6  e8g7  a1c1  f8c8  g6h7
>10?	+2.10	  134	 27955236	 h5g6  h7g6  c2g6  e8g7  a1c1  f8c8  g6h7
>10.	+2.10	  148	 30110201	 h5g6  h7g6  c2g6  e8g7  a1c1  f8c8  g6h7
>11.	+2.10	  200	 40603934	 h5g6  h7g6  c2g6  e8g7  a1c1  f8c8  g6h7
>
>==> My Move: h5g6 in 3:20

Hi Uli,

Interesting position, thanks kburcham. Nice for tuning king safety.

IsiChessMMX found it instantly too, at Depth 0 with +2 score!
Guess blacks king safety penalty after Bxg6 hxg Qxg6+ Ng7 is a bit too huge or
speculative (new paradigm :-)
Open h-file with is rather expensive here, two heavy pieces controlling adjacent
king squares, the white queen near the black king, a pinned knight, domination
of an adjacent king square (h7), the ability to castle queenside, the g5 passer
(pawnstorm)...

Oscillating like Comet from +2.48 at depth 5 via +1.75 at 9 and +2.04 at 11.

Regards,
Gerd

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