
Positive brain game. Suitable for adults and children. 6 puzzles per page. 1002 medium killer sudoku puzzles. Thick paper. Glossy cover. Killer Sudoku 6x6 (Sum-do-ku, Sums Number Place, Kikagaku Nampure, Sums Sudoku, Samunamupure) divided by a smaller rectangle of 2x3 cells...