Go FAQ 30s5c

The rating system

For each match an "expected" score is calculated from the rating difference of the two players (if the ratings are equal, the expected score is 0.5).

This expected score is then compared to the actual score of the game (1 for win, 0 for loss, or can be anything in-between for multiple ends).

If the expected score for the player was higher than the real score, the rating drops, if the score is higher than the expected score, the rating is raised.



Formulae:

Where We is the expected score, and dr is the difference in ratings before the match.

The rating change is calculated from the following:

Where W is the score of the event, We is the expected score, n is the sum of the scores by both players.


The system is based on the rating system developed by Prof. Árpád Élő.

Why is my rating decreasing when I win?

This can happen if you play more games, and the final score is "less" than the "expected score".
See the rating system description for more detailed explanation.

What does ≈ mean in front of the rating?

The ≈ sign means that you have played less than 20 games, therefore your rating is "provisional". The sign will go away after the 20th game.

Ratings are calculated differently if you play against such players. The rating adjustment will be less.

If your opponent has never played a game before (denoted by ---) the rating change will be half of the normal. If your opponent played only 10 games, the rating change will be 3/4 of the normal, if your opponent has played 20 games already, rating change will be normal as described here.

How can I enter tournaments?

Most of the tournaments are only for subscribed . Though occasionally there are open tournaments for everyone. Please check the tournament calendar for details.

If you are eligible to enter, all you have to do is attend the tournament room at the given time.

How to change the board size?

There are currently 4 different board sizes available: the 3 standard ones, namely 9x9 13x13 and 19x19, and a special 15x15 board.

To change your board size preference, click on the gear icon right at the center of the screen, which is called Chat and game settings.



To access it click on this icon:

Removing ads

Any kind of advertising is annoying. Unfortunately it is necessary to keep viable a busy site like this.

Since several people complained and requested accessing the site without advertising, it was launched a package of subscription services.

These are exclusive services made available to subscribers that pay a small fee of USD $25 a year.

Among other services, it is included the possibility to access the site without advertising.

If you are interested, take a look here.

Select graphics mode

It is possible to change the graphics of the game.
In order to do this, simply press F3 while in a match, or check this option in the "Chat and game settings" dialog of the game.



There are two different modes to choose from, the default one is a bit artistic, the other one is a basic, simple interface.

Full screen mode

Full screen mode is only available for our subscribed . To activate full screen mode, press the F11 key on your keyboard after you start the game. The game can be also resized to any size. Simply drag the corner of the browser window, and resize it to any size you wish.

Non-subscribed players can only use the zoom levels in the browsers. Zoom is usually applied in most browsers by pressing the CTRL and + key on the numpad simultaneously (CTRL - for zooming out, or CTRL 0 for default zoom).

It might also be needed to maximize the game window, which can be done by clicking on the small icon next to (x) in the upper right corner of the window or pressing ALT+SPACE+X in some browsers.

The resolution of the game will not change, it is simple image zoom, so the resulting image will be little more blurred.

What is a komi?

Komi is a compensation that the white player gets for the fact that he moves second. The komi can be set at 4.5, 5.5, 6.5 or 7.5.
This setting can be applied by clicking on the gear icon right at the center of the screen, which is called "Chat and game settings".



To access it click on this icon:

Save your games

You can save your games after the game finished, by pressing the SGF Export button.



You will have to use copy/paste in order to export these data into another application (e.g. a text editor, or an sgf editor) where you can save it for future use.



Recommended sgf editors:

• Drago - Freeware Windows SGF editor
• GoRilla - A freeware SGF game editor / viewer / reader for Go.

Setting the number of games per match

It is possible to select the number of games to play in a match.
This setting can be accessed by clicking on the gear icon right at the center of the screen, which is called "Chat and game settings".



To access it click on this icon:

Can I purchase a gift subscription to friends, family ?

You can subscribe a friend, family member, or anyone else, without using their nickname/.
Open the given player's info page, and select the "Gift subscription" option from the menu.

Why should I subscribe?

While we value every , our subscribed are given extra consideration.

Subscribers have special privileges and special services. We listen with great care to our subscribed players' suggestions & concerns.

How to ?

The first and most important is that you use the "mute" button for every player whose activity disturbs you.
There is also a possibility to report any such activity by using the "" link on the offending player's play info page. (This feature is only available for our subscribed , or who have spent some time already on the games.)

How to clear your browser's cache?

Cache is a local storage area in your browser in which previously viewed HTML pages and images are stored. If a previously viewed Web page is accessed again, the copy is loaded from the cache. With this technique, unnecessary Internet traffic is avoided. However, once there are new versions of files on the server, the cache must be refreshed. To ensure that the current copy is loaded from the server and not from the cache, clear the disk and memory cache in your browser and load the page again.

Internet Explorer 9

• Select Tools | Delete browsing history menu item from the main menu.
• Make sure that Temporary Internet files is checked.
• NOTE: DO NOT select Cookies. Delete Cookies removes all the cookies stored on the computer.
• Click Delete.
• Restart browser.

Mozilla Firefox

• Click Tools and select Clear Recent History.
• Make sure that Cache is checked.
• Make sure that Cookies is NOT checked.
• Click Clear Now.
• Restart browser.

Google Chrome

• Click the Customize and control menu. (the wrench icon in the upper-right corner)
• Select Tools.
• Select Clear browsing data.
• Make sure that Empty the cache is checked.
• Make sure that Delete cookies... is NOT checked.
• Click Clear Browsing Data when ready.

Android/Chrome

• Go to Menu > Settings > Privacy.
• Tap CLEAR BROWSING DATA at the bottom of the screen, leave cache selected, then tap Clear.

iOS

• From the home screen, go to Settings > Safari.
• Toward the bottom of Safari's settings screen, tap the buttons for Clear History and Clear Cookies and Data as appropriate. Tap Clear each time to confirm.

Opera

• From the File menu, click to select Preferences.
• From Preferences, click to select History and cache.
• To clear Disk cache, click Empty now.
• Click Ok.
• Restart browser.

Clearing the Java cache

Occasionally you might also need to clear your java cache. Here is how to do it:

• Go to START menu and select Control
• Search for Java
• Select the General tab.
• At the "Temporary Internet files" section click on Settings.
• Click on Delete files
• Check all checkboxes if not checked and click on OK
• Close the java control windows by clicking on Ok

System requirements u6v

The game can be played on several platforms, including desktop PC (Windows, Linux), iOs devices (iPhone, iPad), OS-X, Android devices, Windows Phone, etc.

The game requires HTML5, which is widely ed in modern browsers for these platforms.

For compatible browsers check the summary of HTML5 browsers the games are expected to be able to run on.