The Unbeatable Game from the 60s: Dr NIM 

Buy a modern version of Dr NIM!
mathsgear.co.uk/products/braino
The game of (single pile) Nim can be won by anyone who understands a simple trick. A trick so easy, a 1960s mechanical plastic computer can play with perfect strategy, defeating all humans.
Learn the method and proceed to beat your friends, family and colleagues.
Read more about single-pile Nim on the Maths Busking site:
www.mathsbusking.com/shows-twe...
My Domino Computer. The Domputer.
• The 10,000 Domino Comp...
Dr NIM at the Computer History Museum:
www.computerhistory.org/collec...
And someone has put the whole instruction booklet online:
www.cs.miami.edu/home/burt/lea...
MATT PARKER: Stand-up Mathematician
Website: standupmaths.com/
Music by Howard Carter
Design by Simon Wright