If you're searching for a new mental challenge, this is the puzzle book for you Offering sixty separate fill-in grids, this volume of crossword games calls for a special kind of cleverness. Rather than simply testing your memory like regular crosswords, fill-ins provide a list of answers and require you to determine where they fit into the grid.

Each numberless grid displays one word that is already filled-in, while blacking out the unusable squares. From there, you must fill in the remaining white squares with the words listed below. While most fill-in puzzles are 15 x 15 or smaller,...

This book is a cross between diagramless crossword puzzles and fill-in crossword puzzles. It is like a diagramless puzzle in that you have to figure out where the black squares are. It is like a fill-in in that you are given the answers, but you also have to determine where they go. Richard gives you all the Es to help you get started. The puzzle grids range in size from 13 by 13 all the way to 23 by 23. These new and different puzzles will challenge your spatial and logical reasoning while providing hours of puzzle-solving fun.

With their lack of planned-word arrangement, they will...