I think it would be interesting if he looks side to side before he flicks over the chess piece. Since he is an announcer the entire time he is focusing on his audiences attention on him, so he would want to be as dramatic as possible.  I also like how he leans from side to side of the frame for '...here, and it finishes here' I think it would add more drama if he paused for slightly longer when he leans to the left, before ducking down behind the table.