1,000 + Big killer sudoku 6x6

Positive brain game. Suitable for adults and children. 6 puzzles per page. 500 sudoku killer puzzles hard levels. 502 sudoku killer very hard levels. Thick paper. Glossy cover. I hope you enjoy these puzzles. Killer sudoku may be called or searched with the following phrases or names: different sudoku puzzles, the guardian killer sudoku, sudoku loeser, killer sudoku rules, sudoku tool, beachcomber sudoku puzzles, take a break killer sudoku, krazydad sudoku killer, sodakku, sum sudoku tips, krazydad killer sudoku tough, killer sudoku uk, killer, gratis sudoku, open sudoku puzzles, sudoku number puzzle, brainbashers daily killer sudoku, sudoku game 9x9, sudoku or sudoku, largest sudoku puzzle, guardian killer sudoku today, killer sudoku techniques, killersudoku solver, sudoku games offline, how to killer sudoku, krazydad killer sudoku super tough, soduko solve, sudoku cheat, observer sudoku killer, tips for killer sudoku, very hard sudoku, grille sudoku killer, arrow sudoku puzzle, sums sudoku, sums number place, samunamupure, kikagaku nampure, sumdoku. Best regards, Basford Holmes