By popular request from our members, we are introducing more videos designed to cover the basics of chess principles and patterns. FIDE Master Elliot Liu gets us started by displaying the very simple, yet very important, Big 3 of Basic Checkmate Patterns: king and rook vs. king; king and two bishops vs. king; and finally the infamously difficult king, knight and bishop vs. king. These patterns are a must in the development of any chess master.