Country's marriage equality law took effect on March 10
Two same-sex couples married in country's capital on Thursday
President Sebastián Piñera 'failed to live up to obligations'
Alejandro Ordóñez fought same-sex marriage efforts
Carlos Ernesto González represents two gay couples in lawsuit
Sebastián Piñera urged to support pro-LGBT bills
Two lawsuits have been combined into one case
Supreme Court heard two lawsuits this year
At least one person dead after car plowed into counter-protesters
Michelle Bachelet made announcement in speech to country’s Congress
