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 · Pure Optimization
A puzzle adventure built on solving fixed alchemy and logic challenges.

Optimization · Pure Optimization
A long parade of self-contained logic puzzles wrapped in a mystery story.
Lost Grimoires 2: Shard of Mystery leans Optimization (Pure Optimization); Professor Layton and the Diabolical Box leans Optimization (Pure Optimization).
Lost Grimoires 2: Shard of Mystery leans a little harder on execution, though the gap is small.
Lost Grimoires 2: Shard of Mystery
Click-driven with no twitch demands
Professor Layton and the Diabolical Box
Stylus taps - zero dexterity demand
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Lost Grimoires 2: Shard of Mystery
No adaptive opponent in this solo story
Professor Layton and the Diabolical Box
No opponent; a parade of standalone brainteasers
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Lost Grimoires 2: Shard of Mystery
Puzzles are fixed once examined, not random
Professor Layton and the Diabolical Box
Puzzles are fixed; only their first encounter surprises
Professor Layton and the Diabolical Box leans a little harder on optimization, though the gap is small.
Lost Grimoires 2: Shard of Mystery
Alchemy crafting and puzzle logic are the solvable core
Professor Layton and the Diabolical Box
Each brainteaser has one clean logical solution to find
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
Lost Grimoires 2: Shard of Mystery →
full breakdown
Professor Layton and the Diabolical Box →