1,000 + New sudoku killer 10x10: Logic puzzles medium - hard levels

Positive game. For adults. 6 puzzles per page. 500 killer sudoku puzzles medium levels. 502 killer sudoku puzzles hard levels. Thick paper. 8.5" X 11" Book. (215.9 mm X 279.4 mm). Glossy cover. Killer sudoku may be called or searched with the following phrases or names: sudoku puzzle maker, difficult sudoku puzzles, killer sudoku brainbashers, best sudoku game, best sudoku puzzles, killersud, killer sudoku cheat sheet, sample sudoku puzzles, sudoku summer, sudoku welt, suduko for beginners,...