Name the world's biggest islands by area, not including continental landmasses. When you guess an island its corresponding country(ies) will get coloured in - but you may have to guess other islands from that same country!
For this quiz we consider Australia to be a continent, not an island
If the number of missing answers corresponds to the number of empty cells you know for sure that the missing islands are from 'green' countries!
Can't say I find the map usefull when it colors in the country and hot just the islands in question. When you don't get Indonesia, Japan, New Zealand and Canada in one go, you might forget some, because you already have them green.