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Subject: Re: Computer Can't See the Win...Horizon Effect

Author: Terry McCracken

Date: 21:13:15 03/22/05

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On March 22, 2005 at 21:13:14, Anthony Cozzie wrote:

>On March 22, 2005 at 11:05:11, Terry McCracken wrote:
>
>>[D]8/3B4/5p2/5P1p/P4k2/1P6/r4PK1/8 b - - 0 1
>>
>>Terry
>
>1... h5-h4 2. Bd7-c6 Kf4-g4 3. Bc6-f3 Kg4xf5 4. Bf3-d5 Kf5-e5 5. Bd5-c4 f6-f5 6.
>Kg2-h3 Ra2xf2 7. Kh3xh4 Rf2-a2 8. Bc4-d3 f5-f4 9. Kh4-g4 Ra2-g2 10. Kg4-f3
>Rg2-g3 11. Kf3-e2 Rg3-e3 12. Ke2-d2 Ke5-d4 13. Bd3-c4
> = (2.11)	Depth: 20/35	00:01:05.34	129322kN (1979 KN/s, 2372 splits, 201 aborts)
>
>Zappa is pretty happy about h4, which it thinks wins a pawn.  If I go down its
>line (after 7. Kxh4), it thinks
>
>1... Rf2-a2 2. Bc4-b5 Ke5-f4 3. Kh4-h5 Kf4-e3 4. Bb5-c6 f5-f4 5. Kh5-g4 Ra2-a1
>6. b3-b4 f4-f3 7. Bc6xf3 Ra1-g1 8. Kg4-f5 Ke3xf3 9. a4-a5 Rg1-b1 10. a5-a6
>Rb1xb4 11. Kf5-e6 Rb4-a4
> = (5.44)	Depth: 20/32	00:01:01.85	134874kN (2180 KN/s, 2009 splits, 142 aborts)
>
>So I think the Zappa at least handles this position just fine with Black.
>
>anthony

Not bad Anthony, but 41..Kg4 is more accurate from a technical standpoint, with
many threats, which I've explained already.

41..h4!? will still win, it's second best..but it's still good enough.

Keep the good work up Anthony, your program surprises me with some of its' moves
that other programs miss!

Terry



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