--- a/slides/slides02.tex	Fri Nov 17 14:10:36 2017 +0000
+++ b/slides/slides02.tex	Fri Nov 17 14:11:58 2017 +0000
@@ -1,9 +1,10 @@
 \documentclass[dvipsnames,14pt,t,xelatex]{beamer}
+\usepackage{chessboard}
+\usepackage[LSBC4,T1]{fontenc}
 \usepackage{../slides}
 \usepackage{../graphics}
 \usepackage{../langs}
-\usepackage{chessboard}
-\usepackage[LSBC4,T1]{fontenc}
+
 % \usepackage{../data}
 
 \hfuzz=220pt