#### Help Forum

1. 17 Sep '03 11:25 / 1 edit
I think it should be possible to resign without you're the one supposed to move! This is also possible in
&quot;real&quot; chess. The same is not the case with offering a draw... you could only do that when you're the one to move.

Another idea is that it should be possible to see what your rating would be in the 3 cases: - Win - Draw - Loss.

How is the rating calculated... anyone know?

Banach
2.  mwmiller
RHP Member No.16
17 Sep '03 11:38
Click on &quot;Help/pop-up help/FAQ&quot;
There you will find information on rating calculation.
3.  Phlabibit
Mystic Meg
17 Sep '03 13:44
If you have a game you want to resign... message the person you are playing and ask them to move... tell them you are going to resign.

Here is the rating calculator that gregoftheweb wrote.... Doesn't show draw scores... but it is still handy. Check it out.

http://www7.brinkster.com/obyrne/rhp_rc.htm

P-
4.  gregoftheweb
The Great Gonzo
17 Sep '03 17:19
How are the ratings from a draw calculated? I can put another button on that tool.
5.  Phlabibit
Mystic Meg
17 Sep '03 21:55 / 2 edits
Originally posted by gregoftheweb
How are the ratings from a draw calculated? I can put another button on that tool.
This is from the pop up help FAQ.......

Players are rated using the following formula:

New Rating = Old Rating + K * (Score - Win Expectancy)

K is a constant (32 for 0-2099, 24 for 2100-2399, 16 for 2400 and above)

Score is 1 for a win, 0.5 for a draw and 0 for a loss.

The Win Expectancy is calculated using the following formula:

Win Expectancy = 1 / (10^(( Opponent Rating - YourRating) / 400)+1)

The Win Expectancy is used in the rating calculation but is interesting on its own. For example, the calculation below is for a rating difference of 200. This shows that if you have a rating 200 points higher than another player, you can expect to beat them, on average, three times for each four games played.

Win Expectancy = 1 / (10 ^ (-200 / 400)+1) = 0.76

Note: ^ = &quot;to the power of&quot;, e.g. 2^3=8.

Hope that helps... It's all greek to me... otherwise known as math.

ðŸ˜‰
6.  gregoftheweb
The Great Gonzo
17 Sep '03 22:28
Score is 1 for a win, 0.5 for a draw and 0 for a loss.

I was missing that piece of information. It now shows draws.

http://www7.brinkster.com/obyrne/rhp_rc.htm
7.  Phlabibit
Mystic Meg
18 Sep '03 00:26
Originally posted by gregoftheweb
Score is 1 for a win, 0.5 for a draw and 0 for a loss.

I was missing that piece of information. It now shows draws.

http://www7.brinkster.com/obyrne/rhp_rc.htm
Now that is service! Good work!

Can you add another panel... this would be &quot;chance to win game&quot;... it is based on this info here.

The Win Expectancy is used in the rating calculation but is interesting on its own. For example, the calculation below is for a rating difference of 200. This shows that if you have a rating 200 points higher than another player, you can expect to beat them, on average, three times for each four games played.

Win Expectancy = 1 / (10^(-200/400)+1) = 0.76

P-
8.  gregoftheweb
The Great Gonzo
18 Sep '03 17:09

http://www7.brinkster.com/obyrne/rhp_rc.htm
9.  Phlabibit
Mystic Meg
18 Sep '03 18:43
Originally posted by gregoftheweb

http://www7.brinkster.com/obyrne/rhp_rc.htm
That thing is the cooooolest. Thanx.

Can it make French Toast?

Phla-
10.  gregoftheweb
The Great Gonzo
18 Sep '03 20:07
I don't think I can cast an integer to &quot;french toast&quot; variable type. Maybe in .Net.
11.  gotti2000
The winemaker
19 Sep '03 07:05
Originally posted by gregoftheweb
I don't think I can cast an integer to "french toast" variable type. Maybe in .Net.
try
cast (integer as pain||fromage||jambon||pain)

gg
12.  thire
Xebite
28 Oct '03 15:07
Originally posted by gregoftheweb

http://www7.brinkster.com/obyrne/rhp_rc.htm
Russ could you intergrate that in RHP (or timeForChess...ðŸ˜‰ )
th
13. 28 Oct '03 16:51
We could probably also do with a calculator for the 'p' rules.

If a 'p' player with a rating of P (e.g. 1256p for P=1256) has already completed N games and finishes a game against an opponent rated Q, his new rating will be
P + (Q - P + 800 * (S-0.5) * K) / (N+1)
where S = (1 for a win, 0.5 for a draw, 0 for a loss)
and K = (1 if opponent has a normal rating, 0.5 if opponent also has a 'p' rating)

Until a player has finished 5 games, their rating shows as 1200p, but this formula requires their true (unstable, hidden) rating. I can't remember whether this is visible anywhere.

You also have to remember that the K factor in the usual rating calculation is reduced by 50% (if I remember correctly) for a result against a 'p'-rated player.
14. 03 Nov '03 14:36
Does anyone know, Do you get the same points for a claimed win as you would if your opponent resigns?ðŸ˜•
15.  mwmiller
RHP Member No.16
03 Nov '03 15:01 / 2 edits