Czech climber Adam Ondra opened one of the world's hardest boulders on Friday with the first ascent of a new V16-graded problem near his home in the Czech Republic. Ondra, 18, spent a total of 12 days working the climb, a 12-move traverse that crosses the bottom of a limestone sport crag in Holstejn. In posts online, Ondra said that Terranova was "undoubtedly harder" than any V15 he had climbed in the past, but admitted that the low traverse might "not be motivating at all" for most climbers. The grade is sure to be controversial: there are only a small handful of proposed V16s in the world, and none of them have yet received a second ascent. If it sticks, Ondra will be the first climber ever to send both a boulder problem and a sport route at the highest existing level of difficulty.
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