Sudoku Thumbnail of a Sudoku puzzle.

Size:
9x9.
Elements:
1, 2, 3, 4, 5, 6, 7, 8, and 9.
Groups: Twenty-seven total.
The 9 rows.
The 9 columns.
The 9 3x3 squares.
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 8 Puzzle   ·   3-steps   ·   All-steps   ·   Solution grid
Difficult 9 14 Puzzle   ·   3-steps   ·   All-steps   ·   Solution grid
Challenging 15 20
Tournament 21 29

Derived Signature Puzzles:

Puzzle NamePuzzle
4THOFJULY Thumbnail of a 4THOFJULY puzzle.
Archibold Thumbnail of a Archibold puzzle.
Brunhilde Thumbnail of a Brunhilde puzzle.
Clayborne Thumbnail of a Clayborne puzzle.
Cornelius Thumbnail of a Cornelius puzzle.
Creighton Thumbnail of a Creighton puzzle.
Cristabel Thumbnail of a Cristabel puzzle.
Education Thumbnail of a Education puzzle.
Florencia Thumbnail of a Florencia puzzle.
Jacquelyn Thumbnail of a Jacquelyn puzzle.
Josephina Thumbnail of a Josephina puzzle.
Motherday Thumbnail of a Motherday puzzle.
Nickolaus Thumbnail of a Nickolaus puzzle.
Thorndike Thumbnail of a Thorndike puzzle.

Related Quilt Puzzles:

Puzzle NamePuzzle
HyperSudoku-by5 Thumbnail of a HyperSudoku-by5 puzzle.
Sudoku-Xtreme Thumbnail of a Sudoku-Xtreme puzzle.
Sudoku-by5 Thumbnail of a Sudoku-by5 puzzle.