Isn't DeepMind just an umbrella term like Watson? I would guess that AlphaGo and the software that learns games like this are distinct.
AlphaGo is the program that beat Go. These game playing algorithms are variations of Deep Q Learning Reinforcement Learning algos.
Tech journalism isn't at its best when it can't distinguish between WOPR and a team of researchers.
So, DeepMind's greatest asset is they employ some really excellent people and have a substantial head start in terms of actually implementing AIs and getting them to work.