Sudoku-25

Size:

25x25.

Elements:

0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F, G, H, J, K, L, M, N, P, and R.

Groups: Seventy-five total.

The 25 rows.

The 25 columns.

The 25 5x5 squares.

Instructions:

Precise details on group numbering.

Answer grids:

Puzzle Difficulty levels and Examples

Difficulty Level	Low	High	Example
Easiest	2	2
Easy	3	4
Medium	5	8
Difficult	9	14
Challenging	15	20
Tournament	21	29
TournamentPlus	30	45
Perplexing	46	60