Independent Solution (, SI) was a regional political party in Castile and León, centered in the province of Burgos. It was formed as a split from the People's Alliance in 1987 by the then mayor of Burgos, José MarÃÂa Peña San MartÃÂn, securing an absolute majority in that year's local election in the city, before merging into the People's Party ahead of the 1991 election. It was again established to contest the 1995, 2003 and 2007 local elections before being finally disbanded in 2011.