head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Optimization · Practiced Mastery
Nintendo's daily mental-workout collection of arithmetic, reading, and memory drills.

Optimization · Practiced Mastery
A forgiving fantasy RPG testing light build and morality-system optimization.
Brain Age: Train Your Brain in Minutes a Day! leans Optimization (Practiced Mastery); Fable: The Lost Chapters leans Optimization (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Brain Age: Train Your Brain in Minutes a Day!
Fast writing and speech input under time pressure
Fable: The Lost Chapters
Forgiving combat needs little precision
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Brain Age: Train Your Brain in Minutes a Day!
No opponent
Fable: The Lost Chapters
Enemies and villagers run simple scripts
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Brain Age: Train Your Brain in Minutes a Day!
Problem sets are randomly drawn but simple
Fable: The Lost Chapters
The authored world holds few surprises after one pass
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Brain Age: Train Your Brain in Minutes a Day!
Mental arithmetic shortcuts and practice drive scores
Fable: The Lost Chapters
Alignment, builds and economy are a gentle solvable layer
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.
full breakdown
Brain Age: Train Your Brain in Minutes a Day! →
full breakdown
Fable: The Lost Chapters →