Question about mentor lines etc. etc. | Forums

[AWAC835]

Hey

I have a question about mentor lines. what do the depth means, i see numbers like 1/8 and 4/11 and so on, i figured that the second number is the number of turns the computer have looked ahead, while posistions is the number of acutal posistions looked at or tried. but what is the first number.

Whats the diffrence between the mentor lines and solve for mate, in solve for mate i had a depth of 8 and 500.000.000 nodes, what is the nodes, it can't be the same as the posistions becouse 8 depth in mentor lines takes about 3 seconds and have something around 1.000.000 - 500.000 posistions. in the example above with the solve for mate the computer had worked on it for some time. it never got past the 8.

Another thing about visual thinking, is there a bug that won't let you rewind. I think the mentor lines are nice, and you can see the notation but sometimes the visual thinking is nice to have to, but mine seems bugged. sometimes it works other times it don't. i understandt that you have to press hold, and then you can rewind and look at the moves it have thought ahead and then press resume to let it think some more.

i have CM9000

Another question i like to add. how do the "Transposistion table" work in the personality editor, i can add like 512kb to 256mb?? what is it all good for, or what are the drawbacks.
anyone else that feels the CM9000 manual is lacking behind, lets hope they make a better one for CMX

[AWAC835]

Hey

I have a question about mentor lines. what do the depth means, i see numbers like 1/8 and 4/11 and so on, i figured that the second number is the number of turns the computer have looked ahead, while posistions is the number of acutal posistions looked at or tried. but what is the first number.

Whats the diffrence between the mentor lines and solve for mate, in solve for mate i had a depth of 8 and 500.000.000 nodes, what is the nodes, it can't be the same as the posistions becouse 8 depth in mentor lines takes about 3 seconds and have something around 1.000.000 - 500.000 posistions. in the example above with the solve for mate the computer had worked on it for some time. it never got past the 8.

Another thing about visual thinking, is there a bug that won't let you rewind. I think the mentor lines are nice, and you can see the notation but sometimes the visual thinking is nice to have to, but mine seems bugged. sometimes it works other times it don't. i understandt that you have to press hold, and then you can rewind and look at the moves it have thought ahead and then press resume to let it think some more.

i have CM9000

Another question i like to add. how do the "Transposistion table" work in the personality editor, i can add like 512kb to 256mb?? what is it all good for, or what are the drawbacks.
anyone else that feels the CM9000 manual is lacking behind, lets hope they make a better one for CMX

[Grim_O]

<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR> I have a question about mentor lines. what do the depth means, i see numbers like 1/8 and 4/11 and so on, i figured that the second number is the number of turns the computer have looked ahead, while posistions is the number of acutal posistions looked at or tried. but what is the first number. <HR></BLOCKQUOTE>
You should read this article, it's for Fritz but it's the same that counts for chessmaster
http://chessbase.com/newsdetail.asp?newsid=1699
I'll read the rest of your post later, little tired now

[AWAC835]

Thx for the link, i tried the playchess.com client program, its nice and with lots of great stuff.

I still don't fully understand, how the mentor lines work,

The CM9 have both the Depth in x/x and then moves lef and total moves, and then posistions.

A little example.

Depth x/x - so the first number is depth the engine looking ahead in brute force mode, whatever that means, but somekind of selective search, ans it throws away what it don't think can be used. The second number should then be forced moves like when you check someone, they only have a small selection of possible moves?!?

Moves left - this is how many moves CM have left to annelyse from a particuler depth

Total Moves - this is the total moves for a particuler depth, like from the starting posistion depth 1 you have 10 total moves(8 pawns+2knights) and so on

I would just think that the x/x depth should add up with the number of moves the engine have notated. right now im looking at em "5/14" "136355699" but only 8 moves are showed "1.e4 e5 2.Nf3 Nc6" so on up till 8 moves.
It says that the depth is written in plies, so those 8 moves should make 16 plies so the depth the engine have looked ahead is 16 ply or 8 moves, right? but why do the depth then only show 5/14 ???

Have i missed something??

Another question about playchess.com
Playchess.com is just a place with servers where you subscribe for a fee
then you buy some of there sofware like shredder 8 , Frtiz 8 or junior 8 and you can then play that over playchess.com right???

which are better, since i can't find anything that mention features and stuff, the pages just say they are all great and this won the WC that and that year and the other won next your, 8 times world champ etc. etc. etc.

Is there some extra stuff in the deep versions and can they run on single processors, or are they made just to take advantage of the extra prossecing power by speeding up game annalesys

Very sorry for poor english, it is getting kind of late here, and non native speaker
Otherwise then that, Thx for any help you migth provide

[diskamyl]

it seems you got the brute force wrong. let me adress the issue this way:

let's say chessmaster shows it's depth with the values 4/7

-the numbers shown are in plies, not moves. one ply is a half move. (1.e4 is one ply. 1.e4 e5 is one move. 1.e4 e5 2.Nf3 is 3 plies.)

-the first number (4) states the number of plies that cm has calculated using brute force. that means, it has calculated ALL the possible variatons up to that ply.
-the second number states the number of plies CM has reached using its selective search. which means, in the plies between 4 and 7, CM hasn't calculated all possible variations, but only those which he thinks are significant.