Building comparison
head to head
BloxorzvsPortal 2
Portal 2 asks more than Bloxorz, and the gap is execution.
Bloxorz
Optimization · Pure Optimization
A flash puzzle about rolling a rectangular block into the hole without falling off.
Portal 2
Optimization · Pure Optimization
A first-person puzzle game where seeing the solution is the whole skill.
Bloxorz leans Optimization (Pure Optimization); Portal 2 leans Optimization (Pure Optimization).
BloxorzPortal 2
Axis by axis
Execution1 vs 3
Portal 2 leans clearly harder on execution.
Bloxorz
Deliberate moves; no time pressure.
Portal 2
Portal placement requires some precision but timing is lenient.
Reads0 vs 0
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Bloxorz
No opponent at all.
Portal 2
No opponent; puzzles are static.
Variance0 vs 0
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Bloxorz
Levels are fixed and fully visible.
Portal 2
Puzzles are deterministic with no randomness.
Optimization8 vs 9
Portal 2 leans a little harder on optimization, though the gap is small.
Bloxorz
Each level is a literally solvable move puzzle.
Portal 2
Solving the puzzle's logic IS the entire game.
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.