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Subject: Re: Crafty and Ruffian odd 4th move choice ...

Author: Jim Monaghan

Date: 20:49:51 12/26/03

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Hi Mike,

Thanks for the engine. I set it up in Arena and tested it on the 4th move
postion:

8/4P3/2B5/8/8/6p1/5kP1/5b1K w - - 0 4

Here's the result:
Crafty 19.08 SE  WB2 29 MB:
11   00:00  4.17   1. e8=B Ke3 2. Bf7 Kd4 3. Bh5 Ke3 4. Bg4 Bd3 5. Bd5 Be4 6.
Bc4
12   00:00  4.16   1. e8=B Ke3 2. Bf7 Kd4 3. Bh5 Ke3 4. Kg1 Bd3 5. Bhf3 Kf4 6.
Bcd5 Kg5
13   00:01  4.19   1. e8=B Ke3 2. Bh5 Bd3 3. Bhf3 Bf1 4. Kg1 Bc4 5. Bfe4 Bd3 6.
Bf3 Bc4 <HT>
14   00:01  4.19   1. e8=B Ke3 2. Bh5 Bd3 3. Bhf3 Bf1 4. Kg1 Bc4 5. Bd7 Bd3 6.
Bdc6 Bc4 <HT>
15   00:02  4.19   1. e8=B Ke3 2. Bh5 Bd3 3. Bhf3 Bf1 4. Kg1 Bc4 5. Bd7 Bd3 6.
Bdc6 Bc4 <HT>
16   00:05  4.17   1. e8=B Ke3 2. Bh5 Bd3 3. Bhf3 Bf1 4. Kg1 Bc4 5. Ba8 Bd3 6.
Bfd5 Kf4 7. Bac6 Kg4 8. Be6+ <HT>
17   00:13  4.18   1. e8=B Bc4 2. Bb5 Bd5 3. Bec6 Ba2 4. Be4 Ke3 5. Bbc6 Bc4 6.
Bf3 Kd2 7. Kg1 Ke3 8. Bb7 Bd3 9. Kh1 Kf4 <HT>
18   00:21  4.18   1. e8=B Bc4 2. Bb5 Bd5 3. Bec6 Ba2 4. Be4 Ke3 5. Bbc6 Bc4 6.
Bf3 Kd2 7. Kg1 Ke3 <HT>
19   00:37  4.18   1. e8=B Bc4 2. Bb5 Bd5 3. Bec6 Ba2 4. Be4 Ke3 5. Bbc6 Bc4 6.
Bf3 Bf1 7. Kg1 <HT>
20   02:08  4.18   1. e8=B Bd3 2. Bb5 Bb1 3. Bec6 Ba2 4. Be4 Bb3 5. Be8 Ke3 <HT>
21   02:20  4.19   1. e8=B Bd3 2. Bb5 Bb1 3. Bec6 Ba2 4. Be4 Bb3 5. Bbc6 Ke3 6.
Bcd5 Bxd5 7. Bxd5 Ke2 8. Kg1 Ke1 9. Bf3 Kd2 10. Bg4 Kd3 11. Bh5 Ke3 12. Bf7 <HT>

Totally weird. Uri makes the point that these positions are artificial and
hardly ever come up in games. Many endgame study books make the opposite claim
and surmise that more endings require "study-like finishes" then what we
normally suppose. I like to use engines for all sorts of analysis, not just for
games and I would trust them more if they were "good" in all situations, however
 outlandish, although I do understand the programmers practical bent. I'm
something of a purist and dabble in all sorts of studies, mates, games, etc.
Yace seems to be one of the select few here.

It's odd that your machine sees the right idea fairly quickly and much earlier.
Your PC is faster, but mine should get there eventually. I wonder if TBs are
making the difference.

Jim


>
>Jim,
>
>I just sent you my modified crafty to try this position on...
>
>best,
>
>Michael



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