Multiplication PizzaDoku(c) is a new brain game firstly invented by "Claude Ziad El-Bayeh" on January 23, 2005, which is similar to "Sudoku." However, the grid has a pizza form instead of a square. In this book, PizzaDoku has a grid of 8x8, in which the player should fill numbers from 1 to 8 in empty spaces. Each pair of opposite pizza slices (on the same line) and each ring must contain unique numbers from 1 to 8. In addition, some pizza slices should have specific summations. For example, a pair of opposite pizza slices have the following number [4 X 2 7; 8 1 Y 5], respectively. Where X and Y are not known. The first pizza slice contains [4 X 2 7], and the second one has [8 1 Y 5]. The multiplication of the second pizza slice should be equal to 20. Therefore, 8*1*Y*5=240; hence, Y becomes equal to 6. Then, X should be equal to 3 as it is the only remaining number from 1 to 8. This book has 14 levels with 140 new puzzles. It starts with the easiest level and ends with the hardest and most challenging level. People who love Sudoku, brain games and brain teasers, and who want to improve their intelligence, concentration, memory, reflection speed, etc., are invited to try this new game and provide their comments and suggestions to the author.LET'S TRY SOMETHING NEW AND CHALLENGING!ENJOY THE GAME!