Nope. Shars have a different build, one can see this better on the first picture. They have a lighter frame and are longer but overall smaller than COs. Well, to be correct, in the 70s/80s there was some Shar influx into the CO population and in recent years some CO blood made it back into show lines, but those dogs are usually frowned upon and relatively easily identifiable as they appear quite overdone for a Shar. Other than build also coloring is different for these two breeds. And the respective temps differ noticeably as well. Ear positions and faces, too. From my limited experience with COs I find that the fur consistency differs significantly as well. Other than that, I guess one might consider them similar. Afterall, they are both eastern LGDs.