Sudoku-36 Thumbnail of a Sudoku-36 puzzle.

Size:
36x36.
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, Q, R, S, T, U, V, W, X, Y, and Z.
Groups: One hundred eight total.
The 36 rows.
The 36 columns.
The 36 6x6 squares.
Instructions:
Precise details on group numbering.
Answer grids:

Puzzle Difficulty levels and Examples

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