Potechi

A brainteaser about the uncanny connections between a burglar and the baseball player he fanatically cheers, “Potechi” is as mathematical and diverting as a Rubik’s cube. In his fourth film adapted from a Kotaro Isaka mystery novel, Yoshihiro Nakamura (“Golden Slumber,” “Fish Story”) lays out the writer’s intricate plot with clarity and delightfully offhand irony.