I went to a talk by Rob van Zeijst about the match of Lee Sedol and Alphago and he was saying that after move 37, the push along the fourth line would have bee

I went to a talk by Rob van Zeijst about the match of Lee Sedol and Alphago and he was saying that after move 37, the push along the fourth line would have been better for Lee Sedol. And also, move 78 should not have worked, or at least not that well. This was also noticed by the real time commentary at the time, IIRC.