# Chess diagrams in LyX with PDFLaTeX

LyX 1.4.3 fails to generate a PDF with PDFLaTeX if you have chess diagrams in your document. The solution is to enable the chess package in your LyX document’s LaTeX preamble, as follows.

``````\usepackage{chess}
``````

As obvious as this may seem, it took nearly three hours of fiddling around and scouring the web before I happened upon this gem of a solution.

Furthermore, I use the following in my document’s LaTeX preamble to enable chess diagrams for presentations with LaTeX-beamer (the “Beamer Presentation Class” document class in LyX).

``````% for chess diagrams
\usepackage[ps,mover]{lyxskak}
\newgame
\usepackage{chess} % to make it work in pdflatex
``````