Currently the contest starts in ~45 min and I've found no blog about it, so I created one.
Contest link: https://codingcompetitions.withgoogle.com/codejam/round/00000000008779b4
This is my first time participating in Round 3. Good luck to everyone! And feel free to discuss the problems after the end of the round.
UPD: I actually ranked #500 (preliminary rankings), pretty happy of my performance. And I got all my points in the first hour :).