1 puzzle per page. Holmes presents Sudoku and puzzles: 30 Numbricks puzzles 14x14 extreme levels. 30 Numbricks puzzles 15x15 extreme levels. 30 Killer sudoku 10x10 extreme levels. 30 Killer sudoku 12x12 extreme levels. Numbricks puzzle may be called or searched with the following phrases or names: numbricks, numbrick, numbricks puzzle, numbricks game, numbricks logic, numbricks sudoku, numrich parts, brain teasers for adult, brain games for adults, hard puzzles to solve, numrich stock, daily logic puzzle, brain puzzles, numerical, brain teaser puzzles for adults, mind puzzles for adults, brain puzzles for adults, extreme to solve puzzles, numerichs, puzzles hard to solve, numerch, nucanoe, hidato puzzle, nursery, hidato solver. Killer sudoku may be called or searched with the following phrases or names: sudoku, sum sudoku, killer sudoku books, times killer sudoku, sumdoku, sudoku books, extreme killer sudoku, times killer sudoku books, killer sudoku puzzles, puzzle, the times killer sudoku books, times ultimate killer sudoku books, sudoku 9x9, killer sudoku puzzle books, killer puzzle, sumoku sudoku, sudoku puzzels, sudoku game, sudoku puzzle books, daily killer sudoku, daily sudoku killer, sudoku puzzles, sudoku for kids, extreme sudoku puzzles, times killer sudoku solutions, super sudoku, daily sudoku, game sudoku, sudoku tips, sudokus, how do you play sudoku, play sudoku, sudoku solver, how to do sudoku, the times ultimate killer sudoku, play killer sudoku, sudoku answers, ultimate killer sudoku, how to play sudoku, sudoku rules, sudoku challenge. I hope you enjoy the book. I would really appreciate it if you write a review. Best regards, Basford Holmes