head to head
Stronghold Crusader II asks more than Portal 2, and the gap is reads.

Optimization · Pure Optimization
A first-person puzzle game where seeing the solution is the whole skill.

Optimization · Pure Optimization
A medieval siege-warfare RTS emphasizing economy management and castle building.
Portal 2 leans Optimization (Pure Optimization); Stronghold Crusader II leans Optimization (Pure Optimization).
Stronghold Crusader II leans a little harder on execution, though the gap is small.
Portal 2
Portal placement requires some precision but timing is lenient.
Stronghold Crusader II
unit micro and siege management require dexterity
Stronghold Crusader II leans clearly harder on reads.
Portal 2
No opponent; puzzles are static.
Stronghold Crusader II
reading human opponents' siege timing and attacks
Stronghold Crusader II leans clearly harder on variance.
Portal 2
Puzzles are deterministic with no randomness.
Stronghold Crusader II
minor resource and combat RNG
Portal 2 leans a little harder on optimization, though the gap is small.
Portal 2
Solving the puzzle's logic IS the entire game.
Stronghold Crusader II
economy and siege strategy dominate outcomes
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.