Futoshiki [FUTO-4-014P]
Moon or Sun [MSUN-4-014P]
Girandola Sudoku [GIRA-4-009P]
Classic Sudoku [SUDO-4-009P]
Rect-Slider [RECT-4-014P]
Rossini Sudoku [ROSU-4-009P]
Hitori [HITO-4-014P]
Heyablock [HEYB-4-004P]
Tetoron [TRON-4-004P]
Doppelblock [DOPP-4-009P]
Kaero [KAER-4-014P]
Straight Cross [STRX-4-004P]
Anti-Knight Sudoku [NITE-4-009P]
Aquarium [AQUA-4-014P]
