How do you use Fritz chess software? USCF Sales ( ) presents a series of Fritz13 chess software tips, demonstrated by Steve Lopez (renowned chess computer expert, who also writes more ChessBase and Fritz how-to’s at ). When you click the “infinite analysis” button in the Fritz13 chess playing program, you can get grandmaster strength analysis from your chess engine. But what does all the information in the analysis display really mean? In this video, Steve explains the numerical output generated by Fritz13 and other chess playing programs.