Matthew Sadler (1974) is a Grandmaster who twice won the British Championship and was awarded an individual Gold Medal at the 1996 Olympiad. He has authored several highly acclaimed books on chess and has been writing the famous'Sadler on Books' column for New In Chess magazine for many years. Natasha Regan is a Women's International Master from England who achieved a degree in mathematics from Cambridge University. Matthew Sadler and Natasha Regan won the English Chess Federation 2016 Book of the Award for their book Chess for Life. Garry Kasparov: "Chess has been shaken to its roots by AlphaZero." Steven Strogatz (professor of mathematics at Cornell), New York Times, December 26, 2018: "Most unnerving was that AlphaZero seemed to express insight. It played like no computer ever has, intuitively and beautifully, with a romantic, attacking style."