Not sure if it's Fair Play, but, apropos of Japanese detective fiction, I found the works of Seishi Yokomizo [1] absolutely amazing. His works are very atmospheric and quite dark, but - dare I say it - better than even Agatha Christie's IMO. Unfortunately, I could only find 4-5 of his books translated to English.
Keigo Hagashino's (the author of Devotion of Suspect X) Detective Kaga series is pretty good as well.