A5 Puzzles Wiki
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Ahh, I love Sudoku Variants. They apply an extra or different rule on sudoku. They make sudoku a different solving experience. Why not have a go at some?

#2: Sudoku XV

#1: Inequality Sudoku

#4: Rainbow Sudoku

#3: Equal Sum Sudoku

#6: X-Factor

#5: Colour Sum Sudoku

#8: Arrow Sudoku

#7: Sternsudoku

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