What's the Difference?

Rashomon has spent seven decades as the high watermark of questioning the subjective nature of truth. Often imitated, even spawning the so-called Rashomon Effect, the film about conflicting accounts of the death of a samurai and assault of his wife illustrates that one version of events many times just isn’t enough. But Akira Kurosawa based his masterpiece on far more ambiguous source material, the short story In a Grove by Ryunosuke Akutagawa. So how did Kurosawa adapt ambiguity itself from page to screen?