This clip [1], from the UK game show &quot;Golden Balls&quot;, is a very entertaining example of a two-player zero-sum game<p>EDIT: As explained in the replies, this is not actually a zero-sum game.<p>[1] <a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=S0qjK3TWZE8" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=S0qjK3TWZE8</a>