Total Solve Difficulty 0.0–24.9
Clear visual guidance and abundant placement cues.
Total Solve Difficulty 25.0–30.9
A gentle solve with modest stretches of uncertainty.
Total Solve Difficulty 31.0–37.9
Consistent interest without sustained high ambiguity.
Total Solve Difficulty 38.0–44.9
Noticeable repetition or quieter regions require care.
Total Solve Difficulty 45.0–50.9
Multiple demanding regions slow sorting and placement.
Total Solve Difficulty 51.0–55.9
Sustained visual ambiguity rewards disciplined solving.
Total Solve Difficulty 56.0–61.9
Limited anchors and difficult transitions dominate the solve.
Total Solve Difficulty 62.0–66.9
High ambiguity persists across most of the puzzle.
Total Solve Difficulty 67.0–74.9
Severe artwork or cut interactions leave few easy gains.
Total Solve Difficulty 75.0–100.0
Exceptional difficulty intended for highly experienced solvers.