Talk:Winter 2018 Event/@comment-2A02:908:C34:7760:7CA9:CB94:3545:D6E0-20180217174146

On E-1E, B is not a node to unlock the Boss Node.

Or you need to A-Rank at least 3 Nodes on Easy too.

I have A-Ranked B and F, but Boss Node appeared on after K Node.