Anti-Knight Sudoku [NITE-4-004P]
Rossini Sudoku [ROSU-3-003P]
Consecutive Sudoku [CONS-5-005P]
Outside Sudoku [OUTS-1-001P]
Frame Sudoku [FRSU-1-001P]
Non-Consecutive Sudoku [NCSU-2-002P]
Asterisk Sudoku [ASTE-2-002P]
Little Unique Killer Sudoku [LUKS-1-001P]
Jigsaw Sudoku [JIGS-5-005P]
Anti-King Sudoku [KING-3-003P]
Even-Odd Sudoku [EOSU-3-003P]
Killer Sudoku [KISU-1-001P]
Classic Sudoku [SUDO-4-004P]
Rossini Sudoku [ROSU-1-001P]
