The way I play, it usually takes most or all of the allotted time duration. Hence I managed a Gold in Expert by 1937
The only comment, is that there is not a 'silo' amenity, so that I can maximize 'coffee', which is grown along the China Sea area.
But I didn't find any programming problems. An interesting concept of challenges.
![worship {,0,}](./images/smilies/worshippy.gif)