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 ). Now that we’ve learned how to earn analysis credits [in Fritz Tip #0022], let’s find out how to spend them! In this video Steve shows you how to submit a position to the Let’s Check server for other Fritz13 users to analyze.