Chess will never be solved, here's why

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tygxc

#1804
"if chess is a win for white or black, I would accept it as reasonable to expect a square root exponent."
Losing Chess is a win for white and it took only 900,000,000 i.e. the 4th root of 10^36 positions.
The authors of the paper on Losing Chess attribute the low number to Losing Chess being a win.

playerafar

Is somebody trying to suggest that a computer will get more speed by using different Units to measure its speed ??
Lol !  Hahahahahahaah.
I'm going to get better performance out of my car by considering its speed in kmh instead of mph ??
@tygxc - I wonder how much obfuscation value you'll get with that Manoeuver !!  happy.png

Chess will be solved because we use some other units than FLOPS to measure or state its speed ???   evil.png

tygxc

#1811
FLOPS = number of floating point operations per second a computer performs.
https://en.wikipedia.org/wiki/Floating-point_arithmetic 
Number of floating point operations for chess = zero.
Nodes / second = number of chess positions including evaluation a computer considers per second
it is not a different unit, it is a different thing.

playerafar

You appear to be totally evading the issue of the speed of the computer.

tygxc

#1802
http://library.msri.org/books/Book29/files/schaeffer.pdf
page 131 line 5

Now for my questions to you:
Do you seriously doubt that 1 d4 or 1 e4 are at least better than 1 a4 or 1 a3?
Do you seriously doubt that white loses by force after 1 e4 e5 2 Ba6?

playerafar

What is the speed of the computer you are referring to?
Not its speed in chess units.
Its hardware speed.   Number of megahertz.  Clock speed.
If you're saying its speed can only be measured in chess units that sounds extremely flimsy and contrived.
The speed of all computers in the world are to be measured in chess units?
'Positions' ?  All positions would take the same time ?
Have you thought about this at all?

tygxc

#1813
No, I do not evade the speed of the computer.
I measure the speed of the computer considering chess positions by how many chess positions including evaluation it considers per second.
I do not measure the speed of the computer by the number of floating point operations it could perform, as it performs no floating point operations at all while it is considering chess positions.

tygxc

#1815
Those cloud engines have multiple processors.
Clock speed in gigahertz is not what counts.
For all computers in the world:
The speed for the purpose of solving chess is measured in nodes/second.
The speed for the purpose of forecasting the weather is measured in FLOPS.

playerafar


By this logic - whoever purchases or rents the computer -
when contracting or buying ...  would have agreed to the deal without knowing the speed of the processor?
They're using it free so they don't know?

Analogy:  (relevant)
Race car financier/boss ...  "You know we've got a lot at stake in this race right?"
Race car expert on his staff:  "Yes I know that."
Financier/boss :  "How powerful is this new engine you want to use - in horsepower ?"
Expert:  "We don't use horsepower for that"
Boss:  " Whaat??  Well what do you use then?"
Expert:  "the guy pushing the engine says it'll do laps really fast!"
Boss:  "I want the strength of the engine in horsepower right now.  I want to know its typical rpm's and other specs too.  Right now."
Expert:  "Boss - if we use those units - it won't look good - we won't get as good performance !!"
Boss:  "You're saying we'll get better performance just by going by what this other guy says about 'laps' ?
What were you smoking last night?
You haven't been drinking again have you?"

playerafar

Relevant Analogy Continued:
Expert:  "Boss - I can find out its horsepower but you shouldn't go by that!"
Boss:  "Find out right now."
2 minutes later:
"Its 50 horsepower."
"You didn't sign anything did you ??"
"Well ??"
Silence.  The 'expert' knows there's nothing he can say now to 'repair' the situation.  
He makes eye contact with his boss, pleadingly.  
The boss wonders what he'll say to his investors ...
But then he gets a lucky break - his lawyer happens to show up ...
"I couldn't help hearing ..."
Boss:  "tell me something good"
Lawyer:  "We can still get a real engine into the car from somebody else.  That other contract isn't final for another hour !
But you've gotta let me serve a formal rejection right now !"
The boss never felt so relieved in his life.  

He wonders though - why he ever ever listened to this 'expert' - while quickly rejecting the 50 HP 'engine' - getting a real engine -
and of course - the Expert takes a Walk.  A one-way walk.

tygxc

#1819
It is rather otherwise:
Chess solving financier: how many chess positions can your cloud engine consider per second?
Expert: our computer can do floating point operations quite fast
Chess solving financier: solving chess does not need any floating point operations so I do not care how many floating point operations it can do.

playerafar

Chess solving financier:  "Tell me the speed of the computer.
Right now.  No fancy footwork.
Use standard computer terms - not sales talk."
The salesman realizes though - that if he talks directly and honestly - then his sale isn't going through.
What does he do?
He dances.  He wriggles.  He bobs and weaves.
But the financier knows he - the financier isn't buying into the spiel.
He's just glad he didn't fall for it.
Whew !  That was close !

haiaku
tygxc wrote:

#1802
http://library.msri.org/books/Book29/files/schaeffer.pdf
page 131 line 5

Now for my questions to you:
Do you seriously doubt that 1 d4 or 1 e4 are at least better than 1 a4 or 1 a3?
Do you seriously doubt that white loses by force after 1 e4 e5 2 Ba6?

Are you mocking me? I know where the conclusion of that pdf is, thanks. I am asking you, for the sixth time if I am not mistaken, where do you read that the searched lines are just those in the proof tree? Is it clearer now? Answer this simple question honestly and I will answer you. One thing at a time.

tygxc

#1822
In the other paper it says 10^7 in the tree and 10^7 considered per tree position

tygxc

#1824
The true speed of available cloud chess engines is 10^9 nodes per second as per the reference quoted above.

playerafar

It begins to look now - like we're going to get nothing but evasion regarding the true speed of the computers in the project.
Maybe @MARattigan (instead) will have a way to present the issue properly.
Without any lawyer talk.  grin.png
Even if the true speeds of the computers are presented properly in the articles - that would still mean that the 'proponent' here doesn't want to talk about that for some reason.  He doesn't know?  Doesn't get it?  Hasn't thought about it?  Maybe that'll stay like that.  happy.png
Its okay though.  Being evasive isn't the same as not being civil.  
Its not personal.  So he's doing fine.

tygxc

#1826
Strongly solving is not feasible, weakly solving is feasible.
Strongly solving would go from the 7-men endgame table base towards the opening.
Weakly solving goes from the opening towards the 7-men endgame table base and requires far less positions to consider i.e. nanoseconds to calculate on a cloud engine.

playerafar

Maybe that'll be the kind of response over and over again.

This could be part of the pattern of unwillingness to post the increases of times needed as the tablebases moved up from two kings to seven pieces on board.
But again - its okay. 
Obviously he has no obligation to provide any of that information. 
But if there's a desire to push a project - why the obvious silences about where its really critical?

Anyway - its nothing personal. 
All within the 'parameters' of the forum topic.
Maybe I should 'choose to like it'.  Its 'cute.'
At least - he has already conceded that true solving isn't feasible at this time - and won't be for a while.  If ever.  diamond.png

haiaku
tygxc wrote:

#1822
In the other paper it says 10^7 in the tree and 10^7 considered per tree position

And seven. Earlier you tried to use a paper to prove that only the square root of the search space has been checked, and there is no proof. Now you say "the other paper"... Which one? Page, line, or paragraph? Are you saying that indeed 10^14 nodes have been searched?

Seven times is quite a lot, maybe @playerafar is right about you.

playerafar

Hi @haiaku !
By the 'logic' now being pushed -
that it 'doesn't matter' about the FLOPS or the Hertz or other basic speeds of the computers involved ...
then - chess should be solvable on an old Commodore 64 computer.
We can just assert that it does so many 'nodes per second' so its 'okay'
!!!!
Hahahahahahahahahhahahahahhahah