Thoughts on the ABS challenge system

Nigeria South Africa Ghana Senegal Uganda Kenya Morocco Egypt Tanzania Sudan Zimbabwe Ethiopia Algeria Somalia Libya Ivory Coast Mozambique Zambia Tunisia Angola DR Congo

India Iran Malaysia Indonesia Pakistan Turkey South Korea Japan China Saudi Arabia Philippines United Arab Emirates Israel Singapore Bangladesh Nepal Vietnam Thailand Cambodia Yemen Taiwan North Korea Palestine Iraq Lebanon Syria Kazakhstan Qatar Afghanistan Laos Sri Lanka Kuwait Jordan Uzbekistan

United Kingdom Ukraine France Russia Italy Germany Spain Poland Portugal Ireland Netherlands Greece Switzerland Austria Belgium Romania Finland Denmark Czech Republic Hungary Sweden Norway Belarus Bulgaria Georgia Croatia Serbia Slovakia Slovenia Iceland

United States Mexico Canada Dominican Republic Guatemala Costa Rica Jamaica Panama Cuba Belize El Salvador Bahamas Puerto Rico Honduras Nicaragua Haiti Barbados

Brazil Peru Argentina Ecuador Colombia Venezuela Bolivia Uruguay Chile Paraguay

Australia New Zealand Fiji Papua New Guinea