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

Optimization · Systems & Chaos
Tests attentive reading and interrogation-line selection in a noir mystery.

Optimization · Pure Optimization
A heartfelt WWI puzzle adventure following four lives through the trenches.
Chicken Police leans Optimization (Systems & Chaos); Valiant Hearts: The Great War leans Optimization (Pure Optimization).
Valiant Hearts: The Great War leans a little harder on execution, though the gap is small.
Chicken Police
Point-and-click interrogation needs no dexterity
Valiant Hearts: The Great War
Gentle timing in a few chase sequences
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Chicken Police
Suspects are authored characters with fixed responses
Valiant Hearts: The Great War
No opponent
Chicken Police leans a little harder on variance, though the gap is small.
Chicken Police
Case details are hidden until interrogated out
Valiant Hearts: The Great War
Fixed puzzles, fully visible
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Chicken Police
Picking correct interrogation lines is a solvable puzzle
Valiant Hearts: The Great War
Simple inventory and environmental puzzles with set solutions
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.