For the guy who asked about it arranging itself into the exact correct position, assuming proper randomness and no impossibility checks, it should be 1/15!, or 1 in fifteen factorial. 15! = 1,307,674,368,000. So this is a 1 in about 1.3 trillion chance, twice as likely with impossibility checks (1 in 650 billion). Too bad I'm more than a decade late...
This is a great game, But I haven't played it in a year so somehow I had like -140000000 Rubber+ (Or something like that) and decided to sell all of it.
When I sold all of it my money dropped to zero and when I sold everything else I had, nothing changed. I know this has to do with JavaScript or something like that, but it would be nice to have a maximum amount of ores.