For opponent is sandra kristjánsdóttir, outcome is winner and edition is 2009 europe/africa group iiib mention all the opponent team.
create table table_27877656_7 (opponent_team varchar, opponent varchar, edition varchar, outcome varchar, PRIMARY KEY (opponent_team))
select opponent_team from table_27877656_7 where edition = "2009 europe/africa group iiib" and outcome = "winner" and opponent = "sandra kristjánsdóttir"