C010¶


Research	R0031 — Plural Voice Claims Blind
Run	2026-03-27
Claim	C010

Claim: Kurosawa's Throne of Blood (1957) is based on Macbeth, The Bad Sleep Well (1960) is based on Hamlet, and Ran (1985) is based on King Lear.

BLUF: Substantially confirmed with an important caveat about The Bad Sleep Well. Throne of Blood (1957) is universally recognized as a Macbeth adaptation. Ran (1985) is universally recognized as a King Lear adaptation. The Bad Sleep Well (1960) draws on Hamlet but scholars debate whether it constitutes a true adaptation — Kurosawa maintained a "loose grip" on the source, and it is better described as "inspired by" or "loosely based on" Hamlet.

Probability: Likely (55-80%) | Confidence: High

Summary¶

Entity	Description
Claim Definition	Claim text, scope, status
Assessment	Full analytical product with reasoning chain
ACH Matrix	Evidence x hypotheses diagnosticity analysis
Self-Audit	ROBIS-adapted 4-domain process audit

Hypotheses¶

ID	Hypothesis	Status
H1	All three attributions are accurate	Inconclusive
H2	Two confirmed, The Bad Sleep Well is a loose adaptation	Supported
H3	One or more attributions are wrong	Eliminated

Searches¶

ID	Target	Results	Selected
S01	Kurosawa Shakespeare adaptations	10	3

Sources¶

Source	Description	Reliability	Relevance
SRC01	Throne of Blood (Wikipedia/Criterion)	High	High
SRC02	The Bad Sleep Well analysis (Smithsonian/Criterion)	High	High
SRC03	Ran (Wikipedia)	High	High