BETA PHOTO: Right Unknown is in blue... on the right.
Description
Alas, you probably won't find this problem in the same conditions that I did. Even as I climbed, it was still shedding rotten rock between the starting hold and the solid rock at head-height. Starting on excellent underclings find something solid and make your way right to a large sloping sidepull (lots of good toe-hooks to help). A tough move gets you into solid holds and huecos above. I didn't top it out, but that's just me....
When we first found this spot, we just did the move from the sidepull to the hueco, then later worked on the undercling start, but broken holds halted our progress. So, props for gettin' it done!! Problem to the left had alrerady been done, too.