i tried it last week but its based on HPR system and that one didnt work for me and i played it for 4 months (the HPR) basicaly the HC3 you play the 2 neibhors this way
2x the double streets of the neibhors
2x the quad of the neibhors
2x the lines of the neibhors
2x the splits of the neibhors
and then you play the neibhors unt you reach 100 units with progression
on any win you start at step one again
sory my english