Kaito, a puzzle-loving high school freshman, is selected as a candidate for "PHI BRAIN." He and his friend Nonoha find an "unsolvable puzzle" near their school. The puzzle turns out to be a life-threatening "philosopher's puzzle" created by the mysterious group P.O.G. (Puzzle Of God). After successfully solving the puzzle, Kaito is designated as a Solver and is joined by other Solvers as they battle P.O.G. all over the world by solving the "philosopher's puzzles." Source: crunchyroll
NAN0 is JPN BD Remux+WhyNot and CR There's some 1 frame scenebleeds that aren't present in the original WhyNot subs (HDTV moment) UQW would be a good alt
Comparisons: slow.pics