Puzzle was rounded up from Spring Creek Basin in 2005, after which, she apparently went through a few adopters/owners before settling back with the rescue group that had taken her in. They brought her here with her friend Star, a pinto mare also rounded up from Spring Creek Basin in 2005 and adopted and owned continuously by the rescue group since that time.
It's unlikely that Butch and Puzzle knew each other in Spring Creek Basin (he was rounded up in 2011), but they are extremely bonded here at the sanctuary. It's hard to find one without the other very nearby. :)