There's a number of objectives. Most of them are there to keep the molecule going "too far" outside the range of acceptable parameters for drugs.
All objectives give +1000 points when fully satisfied, for a maximum of +12 000. Most objectives have a "Show" button which should highlight areas of concern in red. Even when fully satisfied, objectives may highlight groups which may eventually contribute, so it's not recommended to keep Show on at all times.
The protein part of this puzzle has been chopped up into many chains. Some of the chains are only three or four residues (amino acids) long.
The protein in question is PDB 6DO5, titled "KLHDC2 ubiquitin ligase in complex with USP1 C-end degron".
The protein is also known as "Kelch domain-containing protein 2", which is where the KLHDC2 comes from.
The full protein is 363 residues, so cutting it down to 96 residues seems like a good idea. (The full protein also forms a dimer, so there would be two of them to contend with....)
A few Foldit recipes are chain aware, and look at the protein part as chains A through O, with the ligand as chain N. The dialogs for print protein, AA Edit, and SS Edit need a little tweaking to handle 16 chains, unless you have a high resolution monitor in portrait mode. Fixes will be forthcoming.
Unfortunately this new puzzle has many bugs. For example adding a C atom killed the program completely. I have to restart it.
I'm seeing the same kind of crashes adding an atom or a fragment.
After a crash, if you're on Discord, you can drag the log.txt file from c:\Foldit (or the equivalent spot) over to the #bugs-and-feedback channel. Sometimes log.txt can contain what appears to be useful information. Other times, not so much.
The drag-and-drop trick works if you're using the Discord app. I'm not sure how you do it with the web version, but I assume there's a way.
From the crash reports, we've identified the likely cause of the crashing, and we have a fix which we think should address it which hopefully should be coming out soon.
The fixes which should address the crashing issues should now be in both main and devprev.