Prices are checked against each store and labelled with when.
It checks today's price at every store, compares the alternatives and answers in about a minute.
This paperback by David Leithauser contains 75 logic puzzles framed as murder mysteries. Each puzzle presents a crime scene and a set of clues, with the solution on the following page. The book also includes four cryptograms and is organized into seven chapters. It suits puzzle fans who enjoy deductive reasoning and want a large collection of self-contained cases. Compared to other logic puzzle books, it offers a high puzzle count and a consistent mystery theme, though some solvers may find the difficulty uneven.
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This book has 75 logic puzzles written as murder mysteries. Each puzzle describes a crime and lists the clues. The solution is on the next page.
The book has 7 chapters. Chapter 1 has very easy puzzles to get started, and chapter 2 is slightly harder. Chapters 3 through 5 get progressively harder. Chapter 6 mixes puzzles from all five difficulty levels in random order, so the difficulty of each one is unknown until it is solved. Chapter 7 has four cryptograms for a change of pace.
In a typical puzzle, the reader plays a detective who must use the clues to work out who the murderer is. One sample puzzle has six suspects and 14 clues. The suspects differ in shoe color, hair color, umbrella color, car color and weight.
