My book for March was Ninefox Gambit by Yoon Ha Lee. Ninefox Gambit received the 2017 Locus Award for Best First Novel. It was nominated for the 2016 Nebula and 2017 Hugo Awards for Best Novel and the 2017 Clarke award.
The book uses a couple of odd vehicles to drive the plot. The general idea is the math and advanced technology is based on the calendar. I read a number of reviews that suggested that this approach made the book too obtuse and obscure.
I view the book differently. Arthur C. Clarke's First Law was that "Any sufficiently advanced technology is indistinguishable from magic." I would expect that technology set in the far future could be unfathomable.
I enjoyed the book as a change of pace. I give it a lukewarm thumbs up. This is the first book in a trilogy; I am frankly not sure if I will ever read the second and third books.