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.

Execution · Pure Mechanics
Player-made platforming gauntlets where precision execution meets unseen level design.

Execution · Pure Mechanics
Tests perceptual speed and motor execution under accelerating piece gravity.
Super Mario Maker leans Execution (Pure Mechanics); Tetris DX leans Execution (Pure Mechanics).
Tetris DX leans a little harder on execution, though the gap is small.
Super Mario Maker
Community kaizo levels push platforming precision to extremes
Tetris DX
Precise placement under accelerating gravity decides every game
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Super Mario Maker
Levels are static once built; nothing adapts
Tetris DX
Solo stacking with no opponent to model
Super Mario Maker leans a little harder on variance, though the gap is small.
Super Mario Maker
Unknown user levels are hidden information until attempted
Tetris DX
Random pieces are bounded and rapidly mappable
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Super Mario Maker
Mastering tool tech and level conventions is learnable
Tetris DX
Stacking patterns and scoring strategy are well solved
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.