head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is variance, and it is a single point.

Optimization · Systems & Chaos
A horror visual novel testing careful choice-mapping to avoid hidden bad endings.

Optimization · Pure Optimization
Telltale's episodic comedy adventure sending Guybrush Threepwood after a pox plaguing the Caribbean.
Corpse Party: Book of Shadows leans Optimization (Systems & Chaos); Tales of Monkey Island leans Optimization (Pure Optimization).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Corpse Party: Book of Shadows
Visual-novel navigation needs only reading
Tales of Monkey Island
Click-driven; no physical demands.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Corpse Party: Book of Shadows
No adaptive opponent in the cursed school
Tales of Monkey Island
LeChuck and pirates are pure script.
Corpse Party: Book of Shadows leans a little harder on variance, though the gap is small.
Corpse Party: Book of Shadows
Wrong-end triggers are hidden until discovered
Tales of Monkey Island
Modern design telegraphs most puzzle information.
Tales of Monkey Island leans a little harder on optimization, though the gap is small.
Corpse Party: Book of Shadows
Mapping flags and choices to endings is the only system
Tales of Monkey Island
Episodic inventory puzzles each have one intended solution.
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.