Jacob

Size:

5x5.

Elements:

J, A, C, O, and B.

Groups: Fifteen total.

The 5 rows.

The 5 columns.

The 5 pentominos.

Instructions:

Precise details on group numbering.

Answer grids:

Puzzle Difficulty levels and Examples

Difficulty Level	Low	High	Example
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	8	Puzzle   ·   3-steps   ·   All-steps   ·   Solution grid