The KnightVision PGN Viewer is a tool to publish chess games using PGN files in websites or blogs so others can play over them. It was created in 2008 and serves up millions of chess games every year.
When Flash is not supported the viewer will display the non-flash version. It currently shows the text of the moves. The text of the moves are followed by a link for the KnightVision mobile chess app. For an example, see this blog post (always non-Flash) or this post (Flash if it is supported or non-Flash otherwise) from an iPad or Android tablet.
PGN stands for Portable Game Notation and is a standard way to record and store a chess game. Online chess servers (like ICC and FICS) can send you your games in pgn format and chess database software can read and export to PGN files.
Our mission is to have fun and allow you to publish chess games including commentary, analysis and variations to your web site or blog to share and educate others.
Use the VCR-like (forward, back, etc) controls on the bottom of the board to move through the game. There is also a flip button to reverse the orientation of the board. The white or black square at the bottom right of the board inidcates which side is on move. To access the PGN data of the game, click the copyright message above the moves and you will be taken to the KnightVision PGN publish tool with that data in the PGN text box.
It is free.
None. Use the PGN Viewer and KnightVision web site at your own risk.
WordPress hosted blogs do not currently work with the KnightVision PGN Viewer, but, if you have your own WordPress site you can use KnightVision with the plugin written by Pepijn van Erp. See http://wordpress.org/extend/plugins/wp-... and http://www.uvsnijmegen.nl/index.php/website/wp-....
Sure, here are a few.
For a quick start watch the video above and then go to http://kvchess.com/publish.html.
You don't need to do anything but if you want to customize or improve how KnightVision blends in with the rest of your site you can customize the colors used.
The most important options for matching your colors when you publish are the Color Theme and the Background Color Override:
First, the Background Color Override. If your background is white you don't need to do anything with the Background Color Override. That is the default background color. If your background color is black, you can enter "0" (without the quotes). For other colors, enter the 6 character hex color into the Background Color Override field. In the picture above I have entered "f6f6f6". If you don't know your background color value you can look at your blogger termplate or css files or do a little experimentation. A useful technique is: How to grab the hex code for any color on your screen. Also see this or this for help finding or selecting colors. If your background is an image, try selecting a color from the image or surrounding elements in your web page or blog.
You can then pick one of the pre-defined color themes that best match your blog or website. To see what each looks like, select it and then preview it in the KnightVision PGN Quick publisher.
For more custom effect, you can also pick a dark color override. This is the hex color value that will be used for the dark squares of the chess board and a few other areas.
If the person that published the game chose to show the moves (did not select "Board Only") when they published it then the PGN is available. You can click on the area just above the moves text where is says "Click here to view pgn". That will open the publishing page on the KnightVision web site with the text of the PGN data in the PGN text box. You can copy and paste it from there. There is a length limitation for the PGN data accessed in this manner and longer PGN data may be truncated.
KnightVision understands valid PGN and if you are using PGN generated by a tool there should be no problems. But some common problems from manual editing or copy-n-paste errors do happen.
If you enter bd2 for Bd2 when you enter the game you will see "**Impossible or ambiguous move:(bd2 ) **". First, what is wrong with bd2? The issue is that the pieces must be specified with an upper case letter. So, "Bd2" would be fine. Also, "Bc1-d2" would work. The PGN specification requires pieces in moves to be represented as upper case characters. Also, note that Nd2 would not be recognized as a valid move if there were two knights that could move to d2. It needs to be clear which one is intended. To do that you could use "Nbd2". KnightVision will also recognize "Nb1-d2" or "N1d2".
Another issue to keep in mind is that the destination square must be fully specified in the move. This is mostly an issue with pawn captures. Use "exd6" or "ed6" but not just "ed".
Also, after a problem, we may seem to have a problem in each of the variations later. Those all may be an artifact of the first error. Since KnightVision is confused as to the position it thinks the subsequent variations are attempting illegal moves. If the subsequent moves look ok, it is best to just fix the first error and try again.
You can do that. To host a PGN file from your site you will also need to host the viewer on your site. Here is an example of doing that where the viewer and the game displayed are not being served from this KnightVision web site. View this web page source and search for ".swf" to see how it is done. Contact me for additional help. To download the KnightVision PGN Viewer swf file, your may download http://kvchess.com/releases/latest/KnightVision.download and rename it to KnightVision.swf.
You can do that, it is open source. The link to the source is near the bottom of the KnightVision PGN Viewer page. Contact me for additional help.
© 2008-2013 by Glenn Wilson. All rights reserved.