head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Optimization · Pure Optimization
Turn-based board-puzzle distillation of Tomb Raider's traps and tombs.

Optimization · Pure Optimization
Pure logical deduction - each nonogram is fully solvable from its number clues.
Lara Croft Go leans Optimization (Pure Optimization); Mario's Super Picross 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.
Lara Croft Go
Turn-based taps, zero dexterity
Mario's Super Picross
Marking cells has no speed pressure worth naming
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Lara Croft Go
Hazards move on fixed rules
Mario's Super Picross
A logic grid cannot adapt to you
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Lara Croft Go
Everything visible on the board
Mario's Super Picross
The hidden picture is fully derivable from the clues
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Lara Croft Go
Each level is a solvable movement puzzle
Mario's Super Picross
Pure logical deduction - every puzzle is literally 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.