Liam Parker

Variety Logic Puzzles - CalcuDoku, Binary 200 Easy Puzzles 9x9 Book 5 Liam Parker

CalcuDoku. Each puzzle consists of a grid containing blocks surrounded by bold lines. The object is to fill all empty squares so that the numbers 1 to N (where N is the number of rows or columns in the grid) appear exactly once in each row and column and the numbers in each block produce the result shown in the top-left corner of the block according to the math operation appearing on the top of the grid. In CalcuDoku a number may be used more than once in the same block. Binary (also known as "Binairo Puzzle", "Takuzu", "Tohu wa Vohu") is played on a rectangular or square grid. The goal is to fill in the grid with digits "0" and "1" according to the following rules: Each box should contain a zero or a one. No more than two similar numbers next to or below each other are allowed. Each row and each column should contain an equal number of zeros and ones (or one more for odd sized grids). Each row is unique, and each column is unique.