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The uses of potassium cyanide #chess

August 4, 2013

No, I have not gone crazy. I am referring to CJS Purdy's potassium cyanide motif, which I first wrote about in May, and have mentioned on other occasions. It is a really useful mental tool.

Yesterday, on a boat trip to the sunken city of Simena, I took with me an article from February by

Mark Dvortesky from


In the article, he cites several occasions where surprise tactics were missed. The first is shown below.

If you watch out for potassium cyanide, the solution to this one is easy.





10 Be3?? was a blunder, putting the Nc3 and Be3 in potassium cyanide juxtaposition. 10…d5! and a piece is lost.


Thank you, CJS.


From → Chess

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