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 tile-matching puzzle of planning clears against a randomized board.

Optimization · Pure Optimization
The original post-apocalyptic CRPG where character builds solve the wasteland.
Angry Birds Blast! leans Optimization (Systems & Chaos); Fallout 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.
Angry Birds Blast!
Tapping tile clusters has no timing demand
Fallout
Turn-based, no dexterity
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Angry Birds Blast!
Solo match game, no opponent to model
Fallout
No adaptive opposition
Angry Birds Blast! leans a little harder on variance, though the gap is small.
Angry Birds Blast!
Board layout and power-up drops are randomized
Fallout
To-hit rolls and random encounters
Fallout leans a little harder on optimization, though the gap is small.
Angry Birds Blast!
Planning matches and power-up combos to clear objectives
Fallout
SPECIAL builds and quest routing are deeply solvable
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.