Tricky Logic Puzzles for Adults: 130+ Difficult Puzzles to Challenge Your Brain

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(as of Dec 15, 2023 22:39:29 UTC – Details)

It’s only logical—boost your brainpower with more than 130 logic puzzles for adults.

It’s time to give your mental muscles a real workout! Stuffed full of clever and cunning challenges, this collection of logic puzzles for adults is perfect for puzzlers looking to prove (and improve) their skill.

Featuring a variety of puzzle types—including Sudoku, Masyu, Logic Grids, and Nonograms—these easy-to-understand (but tough-to-solve) puzzles will help keep your mind sharp as you remain engaged and entertained for days to come. Brainpower on!

This exciting book of logic puzzles for adults includes:
130+ puzzles—Find a plethora of logic puzzles for adults all packed into one portable package.True brain-busters—Stretch your abilities with puzzles that are designed to be tough—even for master puzzlers!Plenty of options—Banish boredom with several types of puzzles, including math-focused Calcudoku and innovative Cryptic Puzzles that require both code breaking and creative thinking.
Test your mental acumen with this collection of truly challenging logic puzzles for adults.

From the Publisher

Strengthen your mental muscles as you try to solve puzzles like these:

Calcudoku

A Calcudoku puzzle uses the numbers 1 through 4 for a 4-by-4 puzzle, 1 through 5 for a 5-by-5 puzzle, and so on. Like in sudoku, each row and column must contain each number exactly once (creating what mathematicians call a Latin square). But, unlike a sudoku puzzle, none of the numbers are provided. You need to use logic to place the numbers in each cell according to the clues given in each “cage.”

Sudoku

The name “sudoku” is an acronym, coined in the 1980s for a longer Japanese phrase that translates to “the digits must be single.” The first sudoku-type puzzles appeared more than 100 years ago in a French newspaper, but sudoku as we know it didn’t show up in American puzzle books until the late 1970s.

The rules are simple: Fill in the numbers 1 through 9 within the grid so that each number appears exactly once in each row, column, and 3-by-3 subsquare.

Masyu

Masyu (pronounced “MA-shoo”) is a Japanese word meaning “evil influence.” The objective is to draw a loop (consisting of horizontal and vertical lines) that passes through each box that contains a circle. When the line passes through a black circle, it must turn 90 degrees while passing straight through both adjacent squares. The rules for white circles are the opposite. The line must pass straight through white circles but must turn 90 degrees through one or both adjacent squares.

Publisher ‏ : ‎ Rockridge Press; Illustrated edition (February 25, 2020)
Language ‏ : ‎ English
Paperback ‏ : ‎ 180 pages
ISBN-10 ‏ : ‎ 1646111451
ISBN-13 ‏ : ‎ 978-1646111459
Item Weight ‏ : ‎ 12 ounces
Dimensions ‏ : ‎ 6 x 0.49 x 9 inches