Residue IE Score: Monitors that all PHE, TYR, and TRP residues are scoring well.
Core Existence: Monomer: Ensures that at least 22 residues are buried in the core of the monomer unit.
Core Existence: Complex: Ensures that at least 50 residues are buried in the core of the entire complex (including the interface between monomer units).
Fragment Score: Scans for parts of your design that are unlikely to fold up naturally. Use Rebuild and Remix tools to fix these regions of your design!
Secondary Structure Design: Penalizes all CYS residues. Penalizes GLY, ALA, and PRO residues in helices and sheets.
I've a solution with all bonus ok including core existence complex BUT my 2 monomers are still far away from each other ...
This came up in Puzzle 1068, as well:
If your monomer units are especially well-packed, it is possible to pass the "Core Existence: Complex" filter without designing an interface. We've intentionally set a low threshold here to allow more diversity in designs.
At some point, we might change the filter behavior so this isn't possible; but for the time being, I encourage you to design an interface in spite of your filter bonus!
Just a thought maybe in future puzzle you can increase the bonus in the Core Existence: Complex for interaction and give more freedom with a lower requirement for Core Existence: Monomer.