Fonzie Thumbnail of a Fonzie puzzle.

Size:
6x6.
Elements:
F, O, N, Z, I, and E.
Groups: Eighteen total.
The 6 rows.
The 6 columns.
The 6 3x2 rectangles.
Instructions:
Precise details on group numbering.
Answer grids:

Puzzle Difficulty levels and Examples

Difficulty LevelLowHighExample
Easiest 2 2 Puzzle   ·   3-steps   ·   All-steps   ·   Solution grid
Easy 3 4 Puzzle   ·   3-steps   ·   All-steps   ·   Solution grid
Medium 5 6 Puzzle   ·   3-steps   ·   All-steps   ·   Solution grid
Difficult 7 11 Puzzle   ·   3-steps   ·   All-steps   ·   Solution grid