 Lange published "Lehrbuch des Schachspiels" (Textbook of Chess Games, Halle 1856), and "Handbuch der Schachaufgaben" (Handbook of Chess problems, Leipzig 1862).The variation of the Two Knights Defense 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d4 exd4 5.O–O Bc5 6.e5 is called the Max Lange Attack.The Vienna Game variation 1.e4 e5 2.Nc3 Nc6 is known as the Max Lange Defense.