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.
A logic puzzle book built around a single murder case with 6,400 suspects and 18 clues. The appeal is deduction at scale: you cross-reference suspects and clues to narrow the field to one killer. It suits puzzle fans who like grid-and-clue reasoning and want a long, self-contained case rather than a quick crossword. Compared with typical one-page logic puzzles, it offers far more depth but demands patience and a taste for elimination by hand.
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A logic puzzle book with 6,400 suspects and 18 clues to solve a murder mystery.
