Author: leonid
Date: 05:21:01 11/03/01
Go up one level in this thread
On November 02, 2001 at 22:02:32, Heiner Marxen wrote:
>On November 02, 2001 at 18:29:21, leonid wrote:
>
>>On November 02, 2001 at 17:20:27, Paul wrote:
>>
>>>On November 02, 2001 at 17:05:48, Angrim wrote:
>>>
>>>>On November 02, 2001 at 10:12:03, leonid wrote:
>>>>
>>>>>Hi
>>>>>
>>>>>This one look like reflection of somebody free fantasy. In reality, it came from
>>>>>absence of it. Was written after furtive glance on one Chinese character.
>>>>>
>>>>>[D]8/qkqqqqQ1/q2Q4/nPBNB3/q3B3/bNRQR3/q2P4/qrrbnQK1 w - -
>>>>>
>>>>>Please indicate your result.
>>>>>
>>>>>Thanks,
>>>>>Leonid.
>>>>
>>>>Same system as usual:
>>>>proved that move d6xc7 wins, 15 turns(roughly 30 ply)
>>>>PN2:11172611 evals, 267628 expands, 42.24 seconds
>>>>
>>>>After manually making the move bxa6 instead, it finds that
>>>>black has lost in 3 seconds.
>>>>
>>>>Angrim
>>>
>>>Hi guys,
>>
>>Hello to Everybody!
>
>Hello!
Hi, Heiner!
>>>Indeed, mine starts with bxa6+ (p3/933) ... but I know PNx search doesn't care
>>>about the shortest line:
>>>
>>>00:09 WM9 07 bxa6+ Kb8 Qh8+ Qde8 Qxc7+ Qexc7 Qb5+ Qxb5 Qxb5+ Qb6 Qxb6+ Kc8 Qxc7+
>>>Qxc7 Qxe8+ Qd8 Ne7#
>>
>>If I read correctly your response, it is mate in 9. It is really shortest mate
>>and your program do very well.
>>
>>Mine was not very efficent in selective and find mate only in 10 moves. Five
>>seconds. Brute force found mate in 9, after 52 min of search.
>
>Fine! Chest confirms all this (2.5 hours K7/600 with 350 MB hash):
>
>PV: bxa6+ Kb8 Qh8+ Qc8 Qxc8+ Kxc8 Nxe7+ Qfxe7 Bf5+ Qad7 Bxd7+ Qcxd7 Bxa7+ Qc7
>Qff5+ Qd7 Qfxd7#
>
>This is the only key move.
>Leonid's time appears to be similar to that of Chest, this time:
>
># 1 0.00s 0kN 0.87 1- 0
># 2 0.01s 0kN 1.00 1- 0
># 3 0.04s [ 4.00] 2kN [ 17.74] 0.97 76- 0
># 4 0.28s [ 7.00] 15kN [ 9.66] 1.04 1353- 0
># 5 2.62s [ 9.36] 117kN [ 7.73] 1.16 13556- 0
># 6 18.96s [ 7.24] 859kN [ 7.37] 1.30 106311- 0
># 7 141.96s [ 7.49] 6480kN [ 7.54] 1.44 843816- 0
># 8 1099.97s [ 7.75] 50015kN [ 7.72] 1.64 6709202- 207220
># 9 8881.32s [ 8.07] 394504kN [ 7.89] 1.76 54835847- 46087946
Since you indicated your complet time and mine goes very close to your, will
write my time for brute force.
Depth Time Branching factor NPS
4 moves 1.09 sec 64k
8
5 moves 8.79 sec 60k
7.33
6 moves 1 min 4 sec 58k
7.42
7 moves 7 min 55 sec 53k
6.45
8 moves 51 min 7 sec 52k
9 moves 51 min 21 sec for first solution.
What I see the most remarkable in your search is that your specialized plys do
much better that mine. It is visible when I look your and my time for 4 moves.
Heiner, can you remind (I am too lazy to read needed rescription) of how your
kind of data can be seen. What must be said to your program. For now I can see
total time and main winning line. Sometime it will be useful for me to see your
time, mainly, for 4 and 5 moves. It is the most revealing of how much mine still
miss something at low level.
>EBF was remarkably stable, just a bit below 8.
>
>
>>And how you people is impressed with the last Microsoft decision? I heard it
>>today with big interest. Do you think that inner Windows structures and data
>>will be published, and it will help to all of us in writing our new code?
>
>What decision? Do you have some URL to read?
I just listened to radio and for sure can go and see what is written on many
pages that can be found in the Net. Actually, I will do this for sure but some
opinion from those that I in writing is all the time good to hear.
For me the most important is to know how much inner cooking of Windows system is
now available to the public. Publication about Assembler writing for Windows was
hammered by absence of direct and complet description of all Windows services
and their constant change. Also I am eager to know if "Software Development Kit"
will become free part of every Assembler, or even some Web accessible
downloadable file. For now this package (that theoretically must be upgraded and
bought after each version of Windows) is serious financial obstacle for many
free lance writers like me. When I bought its version for Windows 3.1, its price
was 500$ in Canadian money.
I hope that now Windows will become something of half way between previous
Windows and actual Linux. Would like to see this. I am very fond of Microsoft
Assembler.
Cheers,
Leonid.
>Ein schönes Wochenende wünscht
>Heiner
>
>
>>Cheers and good week-end for You!
>>Leonid.
>>
>>
>>>Groetjes,
>>>Paul, who's no minister or CHEN2 :)
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