Mathdoku Calcudoku puzzle
TM production
Calcudoku · Math Logic Puzzles
Razzle Puzzles
殺手數獨 by Sudoku.com:數字邏輯遊戲
Easybrain
數學益智遊戲 - Crossmath
Guru Puzzle Game
MathDoku
Ben Buxton
MathDoku Notable
aojade
數獨殺手-數獨謎題
Oakever Games
Andoku Calcudoku
Markus Wiederkehr
SumSudoku: Killer Sudoku
Conceptis Ltd.
殺手數獨 - 數獨謎題,益智類腦力遊戲