Sikaku
Welcome to this collection of 100 sikaku puzzles. There are 50 10x10 puzzles, 45 15x15 puzzles and 5 20x20 puzzles included within the book. With a sikaku puzzle, the solver is required to split the grid into a series of rectangles. The sikaku grid contains blank cells and numbered cells. A numbered cell must belong to a single rectangle that contains the number of stated squares. In each rectangle, there is only one numbered cell. These puzzles can be solved by the application of logic, and each puzzle has a unique solution. The solutions are included at the back of the book for the solver to check their answers once they have completed the sikaku puzzles, or if they are in doubt as to what a valid solution looks like and need to take a peek.
