In his next game against Super-GM Peter Leko, Sam Shankland was in a position to pull off one of the biggest upsets in the history of the World Cup. How did he handle that moment on the psychological levels of preparation and execution? Watch and find out! In this interesting Benoni, Sam achieves an advantage early on and when Leko tries to mix it up, he bites off a little more than he can chew... Enjoy!