To solve this logic puzzle, no guessing is needed, but knowledge of the history of the World Cup is. However, trivia here is more to be enjoyed than to be tested, and unless you are a real expert, you will need some help… open the source link (Wikipedia `FIFA World Cup Hosts') in another window!
Note that West Germany counts as Germany for the purpose of this quiz. Each host country has its own box (incl. co-hosts) and all World Cup hosts (1930-2014) appear. Adjacent includes diagonals.