Add the Tamarind paste to the water and heat gently, stirring until smooth. Place in a blender and puree together with the sugar, garlic, chipotles, and adobe / (adobo) sauce. Then add the lime juice and blend in. Serve slightly warmed. This sauce goes very well with any pork dish, especially barbecued pork, or with seafood such as shrimp and soft-shelled crab, especially when combined with a little mint.