Nume utilizator: Parolã:
Înregistrare utilizator nou
Moderator:  Walter Montego 
 Chess variants (10x8)

Sam has closed his piano and gone to bed ... now we can talk about the real stuff of life ... love, liberty and games such as
Janus, Capablanca Random, Embassy Chess & the odd mention of other 10x8 variants is welcome too


For posting:
- invitations to games (you can also use the New Game menu or for particular games: Janus; Capablanca Random; or Embassy)
- information about upcoming tournaments
- disussion of games (please limit this to completed games or discussion on how a game has arrived at a certain position
... speculation on who has an advantage or the benefits of potential moves is not permitted while that particular game is in progress)
- links to interesting related sites (non-promotional)


Mesaje pe paginã:
Lista posturilor afişate
Nu eşti autorizat sã scrii pe acest panou.Pentru a putea adãuga mesaje trebuie sã ai nivelul de (0)
Mod: Toatã lumea poate afişa
Cautã între posturi:  

<< <   41 42 43 44 45 46 47 48 49 50   > >>
5. Octombrie 2004, 20:54:17
HUBY40 
Bonsoir, mes petits loups !

5. Octombrie 2004, 19:46:45
Grim Reaper 
Modificat de Grim Reaper (5. Octombrie 2004, 20:05:01)
I think it would be helpful if people post their own values on the board for the pieces. Here are the ones I put in Gothic Vortex

Pawn = 100

Knight = 275 with 20 pawns, 255 with 0 pawns.
Exact value = 250 + pawns.

Bishop = 310

Rook = 530 with 0 pawns, 440 with 20 pawns.
Exact value = 530 - (pawns * 3).

Archbishop = 690 with 20 pawns, 650 with 0 pawns.
Exact value = 650 + (pawns * 2).

Chancellor = 860, unchanging

Queen = 900 with 20 pawns, 960 with 0 pawns.
Exact value = 960 - (pawns * 3).

These values were chosen carefully, but I still think they can be changed.

For example, compare how Rook + Pawn will be traded for Bishop + Knight as the pawn count varies. At the beginning of the game, R + P = 540, and B + N is 585. You don't want to give up a B + N for R + P early on, because your two minors are developed an in play, while the Rook is most likely just sitting there after having castled.

A Bishop will not trade itself for 3 pawns unless there is some other form of compensation. Notice a Knight will always trade iteself for 3 pawns, or 2 pawns + "heavy positional damage". Some of you may have seen Vortex tossing its Knight to do this already. So far, I think this is strong behavior.

Also, 2 Knights cannot mate a lone king in the absence of pawns. So, a Rook is more valuable than 2 Knights with pawns = 0 (530 for Rook, 510 for 2 Knights).

This "simple" approach makes the program appear to have endgame intelligence. It will prefer to have a Rook over 2 Knights heading into the endgame, and it can direct this play from a distance with the properly chosen values.

If others want to post their "ideal values" I would be happy to review them.

5. Octombrie 2004, 18:27:47
Walter Montego 
Subiectul: bwildman
That's what Thad wrote to me. I've asked one person so far, but he declined unless it becomes absolutely necessary to have another moderator. Thad's a little quicker than me with the editor's eraser and I told him a few things to go along with my thinking, but he's still able to make the call when the need arises.
I'll still tally responses to that previous post and try to keep a list of possible moderators. If Thad or I have to leave or stop using this site for some reason, it will be helpfull to have replacements in mind. So far no one has written me about nominating someone or suggesting themselves for the job. On the board itself, Ed Trice has been nominated and has been dished on. It might take a few weeks to see how it goes. Just the two us might be enough. It didn't work too bad when I was doing it by myself. Had I not had both computers breakdown and then my truck breakdown 300 miles from home, I might've not been missing so much during those two or three weeks when it all came to a head and would have been available to read the posts and monitor the situation better. Oh well, the water has flown by the bridge and this is where we're at now. :)

5. Octombrie 2004, 18:15:09
bwildman 
no ugh...really dont think I want to be on this team:)

5. Octombrie 2004, 18:12:37
ughaibu 
Wilderbeast: are you reinstated?

5. Octombrie 2004, 18:11:10
bwildman 
some like to flirt...some like to argue....some like to play gothic chess.
the current combination of moderators will suffice I think.

5. Octombrie 2004, 18:08:44
Walter Montego 
Subiectul: Re: Safe Check and square coverage counting
What you've done to my square counting idea is not what I had in mind. I'm looking at the numbers that you've posted and figuring you must've pretended each piece was on every square on the board and totaled the square counts that way. That's almost exactly what the Safe Check deal is. What I am thinking is the relative strength of the pieces as to where the will normally be deployed. Rare will it be that one will choose to play to the corner or edge a piece that is greatly lowered in movement there unless forced to do so. Since a Rook is equally mobile on every square it might be the exception to that. As for your conclusion that a Bishop is weaker than a Knight doing the counting this way, did you take into consideration that a Bishop can only travel on half the squares? Perhaps you should double its count for a more accurate estimate. Or some other way. Hmmm, it seems like the pieces that can move diagonal are the ones that have the most variable count and really are stronger when placed towards the center of the board. The pieces that have the Knight component without the diagonal move vary less. As soon as they're two squares from the edge they're at full range. OF course, two squares from the edge can be considered in the middle of the board. Just one square from the edge and they have full range minus two squares. A Knight having just one way of moving, has slow going on the larger board. The Knight's move itself is pretty handy when in close and has the benefit of not being able to be blocked.

I'm thinking that game experience and judgment might give a player a better guide than simple assigning a value to pieces. It's still nice to have a chart with the relative values just to assist in making trades and planning ahead. Especially for beginning players a chart can be of great help. Since the strengths and weaknesses of each piece change from move to move as the game progresses a better approach has to be to learn the game and get more experience. Least ways that's what I'm trying to do. I almost have the hang of how each piece works and am getting better at making longer range plans and detecting my opponent's intentions. The two extra pieces are quite strong and make the game more volitile the regular Chess even taking into account the larger board size. The one constant that remains is the King and the object of the game. Having more power on the board has definitely got to put him in more peril. Why range the whole board to count squares when one usually just focuses on the opponent's King and can concentrate one's forces in his area? If the game survives to the end game stage it is going to be more of a wide body Chess game than a completely different game that exists in the opening and middle parts.

5. Octombrie 2004, 17:56:03
ughaibu 
He had two chances and was conspicuously useless.

5. Octombrie 2004, 17:09:07
coan.net 
Subiectul: Re: I have decided
I believe he already had his chance and it did not work out - this board has already been through enough, so there is no point (in my opinion) in bringing in a moderator who already has issues with other people - it is just asking for trouble.

5. Octombrie 2004, 17:03:02
ScarletRose 
Subiectul: Yes.. I second that!
:) I think that would make a good mix.. don't you think.. ;)

5. Octombrie 2004, 16:19:52
Purple 
Subiectul: Re: I have decided
I nominate Ed Trice for moderator

5. Octombrie 2004, 15:55:05
Grim Reaper 
Subiectul: Re: Safe Check and square coverage counting
Modificat de Grim Reaper (5. Octombrie 2004, 15:56:07)
A piece's value is not merely a function of its mobility. A board can be loaded with pawns that impede a Bishop of the same color, making it a "very bad" Bishop and a piece you would trade for a Knight immediately. One long series of pawn swaps, and now the Bishop might be poised to dominate the Knight in the ending.

As I discussed in my paper here there are values other than the "mobility/safe check" that also factor into the equation. On page 90 of this paper:



There are a few things worthy to note at this point. These are not exact ratios universally accepted by the chess-playing public. The work of Taylor in 1876 provided a foundation upon which players could experiment and adjust the relative merits of the pieces over the years. In this respect, Taylor’s equations will compute semiconditional values for the pieces (Katsenelinboigen, 1997, p. 53). In this fashion, we differentiate these data from conditional, unconditional, partially conditional, and positional values that are computed in a variety
of ways by the contemporary chess master at various stages of the game.


This is explained in more detail in the paper, and in my reference to Dr. Katsenelinboigen's book.

5. Octombrie 2004, 12:54:58
Chessmaster1000 
Subiectul: Re: Safe Check and square coverage counting
Modificat de Chessmaster1000 (5. Octombrie 2004, 13:04:29)
<>The Safe Check method seems like a rather hard way to figure the strength and power of >each piece. Why not just compare how many squares each piece can cover in one move? >Obviously some of the piece's positions when doing the counting will have a great impact >on the total, but some sort of average can be figured into it.

Doing this we have:

Chancellor= 1720
Queen= 1672
Rook= 1280
ArchBishop= 832
Knight= 440
Bishop= 392

So we see that something is wrong. A bishop can't be weaker than Knight. What is wrong?
It's the method, that underestimates many things. Of course safe check method has it's weak parts too, but it seems it is a better estimator for the piece values.

But a very hard question is what really is a piece's value? How we should define the "piece value"? What's the meaning behind this? Can anyone find a good definition of the piece value?


>It seems like the value that is assigned in regular Chess should be adjusted to the game >situation. That's what I do when deciding to make a trade or not. Sometimes a well placed >Knight is worth almost a Rook.

Deep Junior 8.0 knows this well, after the game with Kasparov:-)
Here it played Rae8?!:
r4rk1/pb1n1ppp/2qN4/4p1Pn/2p1P3/2Q1BN2/P
P3P1P/2KR3R b - - 0 17

>Especially when the position is blocked with lots of Pawns and both sides have a >Bishop to keep the Pawns guarded.

5. Octombrie 2004, 11:06:45
Walter Montego 
Subiectul: Safe Check and square coverage counting
The Safe Check method seems like a rather hard way to figure the strength and power of each piece. Why not just compare how many squares each piece can cover in one move? Obviously some of the piece's positions when doing the counting will have a great impact on the total, but some sort of average can be figured into it. It seems like the value that is assigned in regular Chess should be adjusted to the game situation. That's what I do when deciding to make a trade or not. Sometimes a well placed Knight is worth almost a Rook. Especially when the position is blocked with lots of Pawns and both sides have a Bishop to keep the Pawns guarded.

A Rook's total number of squares that it can move to on an empty board doesn't change regardless of where placed. Always 14. On the 8 X 10 board a Rook has 16 squares to move to regardless of placing. All the rest of the pieces gain squares to move to as they get away from the edge of the board. The Chancellor and Archbishop are interesting to compare to each other this way. A Chancellor can have as few as 18 squares and as many as 24 on the 8 X 10 board. The Archbishop as few as 9 and as many as 22. It seems from just casually looking at this analysis that the Archbishop is a piece to try to get into the center of the board and keep it there or near there, and the Chancellor can stay away from the center and still have good range. More Rooklike than Knightlike. Both of them are trouble against the opponent's King. The Archbishop seems to work real well against the King when the position is cramped with its ability to move diagonal and get around the Pawns with its Knight move too.
This is what I've figured out so far. Still learning. :)

5. Octombrie 2004, 07:28:46
ScarletRose 
Subiectul: Re: I have decided
Now that was a very nice post Walter.. :) Kudo's to you..

5. Octombrie 2004, 07:02:42
Walter Montego 
Subiectul: I have decided
It turns out that I can change the moderators. You've been relieved of your duties bwildman. Seems like you wanted me to do this, so there it is. If not, let me know. As for danoschek, I never wanted him back on this particular board while I was a moderator, so I will leave your decision to ban him intact bwildman.

This being a 24 hour medium, and me only going online for an hour or two a day except on somedays when I'm here all day or other times when I'm away for four days, it means the board isn't covered or moderated continually. A few of my Gothic Chess playing opponents might want to take the moderator's job. One or two more, especially in the right time zones or work shifts could keep the board covered over half the time and then there won't be a need to change it to having all posts approved by me. I don't like that way of doing it, but if most of the users and posters to this board would rather have me read incoming posts before they appear on the board, let me know. I can change the setting to that and see how it goes. As I've stated before, I think it will ruin the character of this board, but it will certainly cut down or out the flaming and cussing.
Also, if you'd like to be a moderator, or know someone that might make a good moderator, send me a message. I have a couple in mind and will run it by them in a few days. It's mostly a thankless job, and you must control yourself from being too controlling of others.
Freedom is something you can't have unless you're willing to let others have it.
I prefer working with people that share my philosophy on censorship and don't mind seeking a consensus on making changes to the settings or to the people allowed to post. Though as it currently stands, I have the power to do as I please until there's popular uprising and the overlord steps in to rectify the situation. I'm trying to be a benevolent dictator and just let things flow. Please don't assume that my attitude is one of benign neglect. I may not be online as much as some of you, but I will eventually respond to things that are envelope pushing or rude in nature. Debating and arguing are fine by me, fighting isn't.

And now, back to our regularly scheduled broadcast.

5. Octombrie 2004, 02:55:18
bwildman 
Subiectul: sorry to interupt..
danoscheck is both hidden and temporarily banned till the head moderator signs on...it will be Walters descision,after that.

5. Octombrie 2004, 01:50:15
BuilderQ 
Subiectul: Re:
Yes, Safe Check assumes that pawns retain the same value on all sizes of boards, while other pieces degrade in power. With a large enough board, pawns would be worth more than queens! But I guess for the Gothic or regular chess board, practical values are obtained.

5. Octombrie 2004, 01:40:34
danoschek 
Subiectul: all this ridiculous hickhack ...
Modificat de danoschek (5. Octombrie 2004, 01:44:32)
because of two screwed up wannabe-moderators and, one screwed up
ex-wannabe-moderator, who invented nothing but a trice-monthly newsletter about
how many orgasms he gets by playing hide and seek ... (I'll edit that - not promised) ~~*~~

5. Octombrie 2004, 01:33:07
danoschek 
Subiectul: would I please anybody
Modificat de danoschek (5. Octombrie 2004, 01:34:51)
if I would fiddle a bit around in posts as it seems to be custom here ? saved
the board - blur is futile ... purple was pleasantly judging well. Hereby extending
my vote for hastalavista ceremony to any uncompetitive moderator applying ... ~*~

5. Octombrie 2004, 01:26:06
Thad 
Subiectul: Re:
You can believe what you want about which moderator did what, but the truth remains the truth. Let's not clutter this board with this any longer. If you wish to continue it, PM me.

Thad

5. Octombrie 2004, 01:23:09
Thad 
Subiectul: Re: bwildman
Purple, I have placed you on hide for your insulting post. If you delete or edit it, I will unhide you.

Thad

5. Octombrie 2004, 00:51:06
danoschek 
Subiectul: like poor walter
Modificat de danoschek (5. Octombrie 2004, 00:56:42)
warned him, too - the kewl and moderate I am,reliably ...
and, ... as usual it's not me who has to hide something ... I love
to see my points proven ... carry on - don't worry be cappy ... hehehe ~*~

5. Octombrie 2004, 00:46:29
danoschek 
Subiectul: who cares
I have him on hide since his first abuse after my warning. ~*~

5. Octombrie 2004, 00:44:41
Stevie 
but danos posts were here for quite a while after bwilds post, theyve only been hidden since you came here

5. Octombrie 2004, 00:42:45
Thad 
Subiectul: Re: bwildman
Yes.

5. Octombrie 2004, 00:41:19
Stevie 
Subiectul: Re: bwildman
did he?

5. Octombrie 2004, 00:40:26
Thad 
Subiectul: Re: bwildman
Yes, he did, Stevie. He put danoschek on hide.

5. Octombrie 2004, 00:38:56
Stevie 
Subiectul: Re: bwildman
he didnt moderate ;o)

5. Octombrie 2004, 00:38:02
Thad 
Subiectul: bwildman
I thought you told me you weren't going to moderate for a while.

5. Octombrie 2004, 00:10:14
bwildman 
danoschek,you are becoming insultive.

4. Octombrie 2004, 23:23:01
danoschek 
Subiectul: reminds me
Modificat de danoschek (4. Octombrie 2004, 23:23:20)
is that poll closed about keeping gothic at brainking ? not that I'd
want to change my vote completely but maybe refined to keeping
the game, paying him one dollar pa and kick his butt hasta la vista ... ~*~

4. Octombrie 2004, 23:19:40
danoschek 
Subiectul: blessed ! positive even
if that happens to mt st helen
much more people have to suffer. ~*~

4. Octombrie 2004, 22:54:40
Grim Reaper 
Oops!

4. Octombrie 2004, 22:05:46
danoschek 
Subiectul: GNU Chess
and its basic piece-value calculation are
in the public domain since the early 90s ... ~*~

4. Octombrie 2004, 21:18:22
Chessmaster1000 
I have clearly said that the values were random.

4. Octombrie 2004, 21:07:43
Grim Reaper 
I do not think a Bishop is worth a Knight and a pawn.

4. Octombrie 2004, 20:48:41
Chessmaster1000 
Actually the safe check method is not applied to the Pawns. What is really happens in this method is that it predicts/tries to evaluate, the relative values between all the pieces except Pawns.

Let's say for example, that we find with safe check method that:
Knight=0.3 , Bishop=0.4, Queen=1.2
(the values are random)

Then we know from our (actually from GM's) experience that a Knight is worth 3 Pawns. So the previous values are adjusted properly to give:

Pawn= 1
Knight= 3
Bishop = 4
Queen = 12

4. Octombrie 2004, 20:37:09
BuilderQ 
Subiectul: Safe Check
Wouldn't the "safe check" procedure, if applied to a Pawn, Berolina Pawn, Ferz, Wazir, Man, etc., result in that piece having a value of zero?

4. Octombrie 2004, 17:05:14
danoschek 
Subiectul: somebody must keep it up here
Modificat de danoschek (4. Octombrie 2004, 17:06:57)
quality is already invented, feel free to make use, too. ~*~

4. Octombrie 2004, 15:22:31
ughaibu 
Rabbits are counted as birds in japanese.

4. Octombrie 2004, 13:19:54
rabbitoid 
Subiectul: cat gothic chess
has anyone patented it yet? nobody move until I see my lawyer

4. Octombrie 2004, 06:08:42
Walter Montego 
Subiectul: Re: love that archbishop
The grammar link even has cats for its examples! How'd you ever find that redsales?

I think the Queen is almost always the best piece on the board. Only a particular position would make me trade away a Queen for a different piece.

4. Octombrie 2004, 04:06:42
danoschek 
Subiectul: Thanks for caring to use the word 'seem' Thad. It is a philosophical question indeed whether someone who
Modificat de danoschek (4. Octombrie 2004, 04:20:43)
encourages to carrying off-topic posts elsewhere (e.g. story board) is perfectly on
topic, as I do believe, actually - ben johnson though merely stay as nice pointer at more folks who were not very selective by what means special privileges are to be acchieved ... ~*~

4. Octombrie 2004, 03:56:15
redsales 
Subiectul: love that archbishop
personally I have found that an Archbishop is especially powerful and in many cases would rather have one than a chancellor or queen. One reason is the solo mate, the other is the incredible defensive features it offers by being able to fork attacking pieces while defending. I think that the human brain finds diagonal routed attacks more difficult to deal with than ranks or files. There are so many examples I can think of in Tal's games where he would set up an apparent rook sacrifice, then sac the bish or N as the opponent was bolstering against the open attack..and this is at the GM level!

One more thing, as public service: the word "it's" is a contraction for "it is", so the cat put it's feet in the water is WRONG, the cat put its feet in the water (possessive) is right. Further unwelcome education may be found at http://angryflower.com/bobsqu.gif

4. Octombrie 2004, 02:44:36
Thad 
Subiectul: Sample off topic posts
ughaibu,

The following posts were all made here today. None of them seem to make any sense and all seem off topic to me:

"I guess the aunts are knitting cat's tails inumerable."

"Then we've got to worry whose aunt the tails belong to anyway, inheritance is crucial on a dollar a year."

"I shall step on that tail at the story board eventually ... :P ~*~"

I don't think reminding everyone that posts should be on topic and following it up with a second post after someone asked for some clarity qualifies as "unjustified moderating", especially since I haven't censored, edited, banned, and/or hidden any post or person at all. I don't understand what Bagpuss refers to.

Thad

4. Octombrie 2004, 02:12:43
ughaibu 
Sure, see tomorrow.

4. Octombrie 2004, 02:05:17
danoschek 
Subiectul: well somebody must start the smartness
Modificat de danoschek (4. Octombrie 2004, 02:05:38)
you can't negotiate with two groups of mankind
that is sulking children and terrorists ... good night, and leave me
a few crumbs of him, ugha, I want to eat them on the gameboard ... ~*~

4. Octombrie 2004, 02:02:56
ughaibu 
Oh well, Gothic killed another interesting idea with a few trivial whinging and "off topic" posts, par for the course.

4. Octombrie 2004, 01:59:39
danoschek 
Subiectul: when it comes to cursing
you really should not dare speak, eddieboy ... ~*~

<< <   41 42 43 44 45 46 47 48 49 50   > >>
Data şi ora
Prieteni în direct
Jocurile favorite
Frãţiile
Ştirea zilei
Drept de copiere © 2002 - 2024 Filip Rachunek, toate drepturile rezervate.
Înapoi la Început de paginã