You won't believe what happened to me. I realized I needed Master builders to solve puzzle number 11. I didn't have any builders left and nothing to build to make more. But my strategy was not to start over, merely to wait until more debris washed up on the beach.

Persistence paid off and eventually more debris washed up. I immediately took two young adults and forced them to become builders.

I was sad that there was only enough debris to build two adept builders. Anyways, I made the two adept builders and just left it at that.

I just checked and noticed that puzzle number 11 was solved. I have no idea how. One of my adept builders is missing and presumed dead. The other is now 67 years old. I can only assume the dead builder became a master builder by fixing huts and solved the puzzle without any intervention from me.

Now if I could only solve puzzle number 12!@#$$%$!