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 · Pure Optimization
A story-first adventure with gentle item-puzzle logic as its only test.

Optimization · Pure Optimization
A comedy point-and-click testing lateral inventory-puzzle logic and nothing else.
Back to the Future: The Game leans Optimization (Pure Optimization); Sam & Max: Beyond Time and Space 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.
Back to the Future: The Game
Telltale point-and-click, zero dexterity
Sam & Max: Beyond Time and Space
Pointing and clicking has no dexterity bar
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Back to the Future: The Game
Characters follow the episodic script
Sam & Max: Beyond Time and Space
No adaptive opponent in a comedy adventure
Back to the Future: The Game leans a little harder on variance, though the gap is small.
Back to the Future: The Game
Puzzle solutions are hidden until found
Sam & Max: Beyond Time and Space
Puzzle states are visible or discoverable by poking
Back to the Future: The Game leans a little harder on optimization, though the gap is small.
Back to the Future: The Game
Light item-logic puzzles drive each episode
Sam & Max: Beyond Time and Space
Inventory-logic puzzles are the entire solvable test
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.