Chessexplained is Christof Sielecki. Christof is an International Chess Master from Germany. He is also a professional chess teacher and chess content producer. Christof is well known for his Youtube Channel "Chessexplained", and various works on chess theory.
Christof has published a book on the Nimzo and Bogo Indian which is available on Amazon. Christof has been playing in the top leagues of Germany, The Netherlands and Belgium for many years. Christof's best individual result was winning the Latschach Open 2013 ahead of many Grandmasters.