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 first-person puzzle game where seeing the solution is the whole skill.

Optimization · Pure Optimization
Heist puzzler where you type real commands into a deck to bypass security.
Portal 2 leans Optimization (Pure Optimization); Quadrilateral Cowboy leans Optimization (Pure Optimization).
Portal 2 leans a little harder on execution, though the gap is small.
Portal 2
Portal placement requires some precision but timing is lenient.
Quadrilateral Cowboy
Light real-time coordination of gadgets
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Portal 2
No opponent; puzzles are static.
Quadrilateral Cowboy
Security systems are fixed scripts
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Portal 2
Puzzles are deterministic with no randomness.
Quadrilateral Cowboy
Heist layouts are knowable and deterministic
Portal 2 leans a little harder on optimization, though the gap is small.
Portal 2
Solving the puzzle's logic IS the entire game.
Quadrilateral Cowboy
Optimal command sequences and routes are 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.