Monday, May 26, 2008


Tabbed PGN Viewer

(Updated July 8 to use the latest. Updated June 3, 2008 to use V0-046. Updated June 3, 2008 to use the latest version of the viewer and different colors. The left board was green and the right board was red.)

Here is another (see previous post) sample of the ChessFlash PGN Viewer, this time showing the Saavedra Position. The point of this demo is to show the concept of the "tabbed variations" board on the right. As you scroll through the main line using the buttons on the green board, note the "tabs" on the red board and try clicking those to see what happens. Does it make sense to you? You can also click in the text area.


All feedback and bug reports are welcome.

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Thursday, April 17, 2008


The Saavedra Position

The Saavedra position is one of my favorite endgame studies. It is simple, exciting and has a few unexpected surprises.

I'm experimenting with the tools used to create this video, hosting it outside of my website and embedding it into my blog with an idea towards creating a chess-specific tool and service to make this available to other chess blogs and websites. I used camtasia to create this but I'm wondering how much interest there is among chessplayers for chess-specific tools to easily create videos from pgn files with or without the ability to add audio and other effects (draw lines, highlights, etc). Any feedback is welcome. I'm hosting this video from

And, how did you like the video itself? Did it display ok for you?

It does requires JavaScript to be enabled and the latest version of the Macromedia Flash Player available here.

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Wednesday, July 18, 2007


Pandolfini's Endgame Course

Pandolfini's Endgame Course is a great endgame book for novices and up to about USCF Class A or Expert. The information is in small digestible chunks with easy to remember names and themes. It explains in a simple manner essential endgame knowledge. If I am using the book to teach endgames to a beginner I'll skip around some (learning how to checkmate with a Bishop and Knight, as an example, is material I would study/teach last but it is near the beginning of the book).

Unfortunately, there are a number of typos that can be confusing, especially to someone who is trying to learn the material (and isn't that the point?). I think the book is just fantastic except for those typos! That is why I created and maintain Pandolfini's Endgame Course errata. It would be nice if a new edition is printed with corrections, but until then use the book with the errata and if you spot any major flaws not covered in the errata please send them in.

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Sunday, July 08, 2007


The Saavedra Position

I love a good story with a surprise ending and the Saavedra position is exactly that.

The Saavedra position is one of the best known chess endgame studies. It is named after the Spanish priest, Rev. Saavedra (1849-1922), who, while living in Glasgow in the late 19th century, spotted a win in a position previously thought to have been a draw.

In a legendary article in the Dutch national chess magazine for November 1940, the endgame composer and writer John Selman unearthed how the famous Saavedra position came into being, in 1895, in the chess column of a Glasgow paper, the 'Weekly Citizen'.
When the well known London player Potter died in March of that year, chess editor G.E. Barbier wrote an obituary. A few weeks later, on 27 April, he published a position from one of Potter's games - remembering it wrongly, as Selman demonstrated. But precisely that was the first step to the masterpiece.


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Thursday, May 06, 2004


Pandolfini Endgame

From Ray Cheng:

Dear Sir,

Please refer to Pandolfini's Endgame Course, Endgame 100. ...
Yep, there is a problem with that one. The errata (link in the side bar) is now updated for Endgame 100.

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Sunday, March 16, 2003


Pandolfini's Endgame Course Errata

I just added a link at the left to the errata I compiled for Pandolfini's Endgame Course. I love the format and content and find it a great resource and study guide for players up to about expert strength. Unfortunately the book suffers from a number of typos. Hence, the errata, which lists the major errors I have discovered.

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