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

Optimization · Pure Optimization
Gentleman puzzler solves a village full of standalone brainteasers.

Optimization · Pure Optimization
Methodically decoding intricate fixed mechanisms hidden in a puzzle dollhouse.
Professor Layton and the Curious Village leans Optimization (Pure Optimization); The Room 4: Old Sins 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.
Professor Layton and the Curious Village
Stylus taps only; no dexterity pressure at all
The Room 4: Old Sins
Twisting mechanisms onscreen takes no dexterity
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Professor Layton and the Curious Village
No opponent, adaptive or otherwise
The Room 4: Old Sins
A fixed dollhouse of secrets; nothing adapts
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Professor Layton and the Curious Village
Puzzle answers are hidden until reasoned out, then fixed
The Room 4: Old Sins
Mechanisms are hidden information until discovered
Professor Layton and the Curious Village leans a little harder on optimization, though the gap is small.
Professor Layton and the Curious Village
Every brainteaser has one clean solvable answer
The Room 4: Old Sins
Each puzzle box is a deterministic mechanism to decode
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.