Skyscraper Sudoku [SKSU-3-008P]
Kropki Sudoku [KROP-1-001P]
Anti-Diagonal Sudoku [ADSU-4-004P]
Even-Odd Sudoku [EOSU-3-008P]
Anti-King Sudoku [KING-5-005P]
Sudoku XV [SUXV-5-010P]
Little Unique Killer Sudoku [LUKS-2-002P]
Center Dot Sudoku [CDSU-3-003P]
Hypersudoku [HYPE-3-003P]
Kropki Sudoku [KROP-4-004P]
Jigsaw Sudoku [JIGS-4-009P]
Outside Sudoku [OUTS-1-006P]
Argyle Sudoku [ARSU-3-003P]
Kropki Sudoku [KROP-3-003P]
