Children's Killer Sudoku Magazine

Killer Sudoku Puzzles by Krazydad

Irregular Killer Sudoku — Knight Features

Super Killer Sudoku

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Kakuro and Killer Classic Sudoku: 200 Kakuro and 200 Killer Sudoku puzzles. Easy levels. : Kakuro 9x9 + 10x10 + 12x12 + 15x15 and Sumdoku 8x8 EASY +