Ches base 15 is a brand-new independent Chesbase database and simulation tool officially launched by Chesbase. This system is specially designed for professional players, coaches and clubs. It collects 500,000 wonderful chess game analysis, playing methods and cracking methods of high-end chess games from world masters, and can explain and analyze chess games for each game, so that users can learn the playing thinking of various masters. It aims to provide users with a good chess learning environment. ChessBase has become the standard all over the world. Everyone uses ChessBase, from the world champion to the amateur next door.