Careful climbing will get you safely through the choss band at the bottom (it actually climbs fairly well for choss) - the business comes at the middle, with a few thin sequency moves to the fixed nut (glued in - seems bomber). The route merges with Checkers at the nut for a shared topout. I never remember which is chess and which is checkers, but both go at about 10c, and both are excellent routes. In fact, I'm going to submit this same description for both climbs, as it works just as well for either. 3 stars only because the interesting climbing could be more sustained.