Sudoku Variants Series (183) - Parquet Sudoku — Rätselportal — Logic Masters Deutschland

Hazy connections (Fog of war/Renban/Killer/Kropki pairs) — Rätselportal — Logic Masters Deutschland

Sudoku Variants Series (243) - Clock Faces Sudoku — Rätselportal — Logic Masters Deutschland

Extreme measures (Parity killer/little killer) — Rätselportal — Logic Masters Deutschland

Sudoku Variants Series (254) - Sudoku Mastermind — Rätselportal — Logic Masters Deutschland

Sudoku Variants Series (005) - Renban Sudoku — Rätselportal — Logic Masters Deutschland

Mixed variant sudoku — Rätselportal — Logic Masters Deutschland

Sudoku Variants Series (048) - XV — Rätselportal — Logic Masters Deutschland

Sudoku Variants Series (096) - Ten Box — Rätselportal — Logic Masters Deutschland

Irregular fortress sudoku puzzle pack — Rätselportal — Logic Masters Deutschland

Sudoku Variants Series (064) - Quad Max — Rätselportal — Logic Masters Deutschland

Hitori — Rätselportal — Logic Masters Deutschland

Mystery box Sudoku — Rätselportal — Logic Masters Deutschland

Sudoku Variants Series (101) - Frame 1~9 — Rätselportal — Logic Masters Deutschland

Sudoku Variants Series (138) - Star Battle Sudoku — Rätselportal — Logic Masters Deutschland

Sudoku Variants Series (148) - Dynasty Sudoku — Rätselportal — Logic Masters Deutschland