Anti-Diagonal Sudoku [ADSU-3-008P]
Sandwich Sudoku [SAND-2-002P]
Skyscraper Sudoku [SKSU-5-010P]
Anti-Knight Sudoku [NITE-4-009P]
Jigsaw Sudoku [JIGS-2-002P]
Diagonal Sudoku [DIAG-4-009P]
Asterisk Sudoku [ASTE-3-008P]
Frame Sudoku [FRSU-4-004P]
Little Unique Killer Sudoku [LUKS-3-008P]
Anti-King Sudoku [KING-4-009P]
Center Dot Sudoku [CDSU-2-007P]
Consecutive Sudoku [CONS-4-009P]
Rossini Sudoku [ROSU-3-008P]
Kropki Sudoku [KROP-2-002P]
