www.puzzlehacker.com

Group A – South Africa, Mexico, Uruguay, France
Group B – Argentina, South Korea, Nigeria, Greece
Group C – England, United States, Algeria, Slovenia
Group D – Germany, Australia, Ghana, Serbia
Group E – Netherlands, Japan, Cameroon, Denmark
Group F – Italy (holders), New Zealand, Paraguay, Slovakia
Group G – Brazil, North Korea, Ivory Coast, Portugal
Group H – Spain, Honduras, Chile, Switzerland