Little Book of Bathroom Sudoku 200 Brain-straining Number Placing Games

Sudoku is a number placement puzzle, the aim of which is to enter a number from 1 through 9 in each cell of a grid, most frequently a 9x9 grid made up of 3x3 subgrids (called "regions"), starting with randomly placed numbers given in some cells (the "givens"). Each row, column and region must contain only one instance of each number. Its classic grid layout is reminiscent of other newspaper puzzles like crosswords and chess problems.Stickels, Terry H. is the author of 'Little Book of Bathroom Sudoku 200 Brain-straining Number Placing Games', published 2005 under ISBN 9781592332199 and ISBN 1592332196.