Hypersudoku [HYPE-4-009P]
Frame Sudoku [FRSU-3-003P]
Center Dot Sudoku [CDSU-5-005P]
Jigsaw Sudoku [JIGS-3-008P]
Girandola Sudoku [GIRA-4-004P]
Sudoku XV [SUXV-4-009P]
Anti-King Sudoku [KING-4-004P]
Sujiken [SUJI-3-003P]
Even-Odd Sudoku [EOSU-4-004P]
Outside Sudoku [OUTS-4-004P]
Rossini Sudoku [ROSU-5-005P]
Hypersudoku [HYPE-4-004P]
Asterisk Sudoku [ASTE-5-005P]
Anti-Diagonal Sudoku [ADSU-5-005P]
