Eclipse Unlimited
Endless Eclipse at the difficulty you choose. Nothing repeats until you have seen 300 puzzles.
What Unlimited is for
You finish the Daily, you want another one, and on most puzzle sites that is where the evening ends. Here there is already a pool of 1,000 Eclipse boards, split evenly between the four difficulties. Each of them cleared the same two checks the Daily did: one answer, and no guessing needed to find it.
What you solve here is counted on your stats page under its own heading. It cannot help your Daily streak and it cannot hurt it.