Attached a standalone version of the code here, with a simple profiler running 10 mill random hands. Seems it only does 17M hands/s for me now, not sure if it's my compiler settings or if I did something wrong last time i tested it.

Didn't go through the comments, but guess they can be ignored for the most part :p

Guess I could share code for this too, but don't think I'll do so publicly.

Anyway, I read in hands at a format similar to what you mentioned, creating Range-objects hierarchically, combined with and or or links. After connecting all the rules it feeds hands through the different Rule-filters, eventually storing the final range as Hand-objects in a vector.

In no way rocket science, but it allows for complex combination of rules and a fast final product.