Visit All Countries: move to bordering or jump to almost bordering country - start in Zimbabwe

Start in Zimbabwe. Out of its bordering countries choose the LAST in alphabetical order whose name comes BEFORE Zimbabwe. Keep doing this following these rules:
- if there's no bordering country whose name comes before in alphabetical order, choose the last one in alphabetical order
- if there's no bordering country, try again with countries bordering bordering countries, etc