Dave's Logic Puzzles, started in 1999, soon became a big hit among puzzle enthusiasts. High school math teachers were steering their students to the site. One school for the gifted listed Dave's Logic Puzzles as one of only two sites they recommended. These are the best puzzles from that legendary website with downloadable and printable solve grids available online if you would prefer not to write in the book.

Give your brain a workout on the type of brainteasers that challenge the best solvers at the World Puzzle Championships. They're tough, but fun, and the feeling of satisfaction you get when you succeed is simply unbeatable. Some of the puzzles are oldies but goodies, like battleships--and its many variants--where you search for a fleet hidden within a grid. In "Eminent Domain," try to determine which blanks cells are owned by the numbered ones. For "Hex Loops," locate a path that travels through adjacent hexagons: the trick is, it has to end where it started, and the lines can't touch or cross. From Snaky Tiles to Spiral Galaxies, these Mensa-level conundrums will get your mind in shape.

"These visually unique braintwisters will put your puzzle-solving abilities to the ultimate test!"--Page 4 of cover.

Keep your mind fit with brain aerobics! If you like great mental exercises, try brain aerobics. All you have to do is open this book, lift a pencil, and flex your mind while solving this assortment of invigorating puzzles. In Brain Aerobics Logic Puzzles, you’ll need to rely not only on logical thinking but also on some elementary arithmetic skills. By the time you’ve put your pencil down, you will have tested yourself at everything from sudoku and battleships to dominoes and minesweeper.

An old favorite--Mensa Math & Logic Puzzles--gets a brand-new look: it's now in color! And the puzzles are fantastic: they're the kind of challenge found at the World Puzzle Championships, and they require no language to solve. For example, you are given a grid of dots that has some numbers (0, 1, 2, or 3) in them. You need to connect the dots in one continuous path so that each number is surrounded by that many lines. So a "3" means that three of the four sides around it must be connected. All the puzzles are similar abstract exercises, and all have unique solutions that can be reached using pure logic. They're difficult--and really satisfying exercise for your brain.

Now readers can sharpen their wits by becoming masters of the lateral logic puzzle. The 90 puzzles collected here challenge readers' abilities to solve murder mysteries, capture assassins, find hidden treasure, earn millions in the stock market, capture wartime spies, and more.

Contains over one hundred problems in which reasoning is required to reach the answer, ranging from easy to relatively difficult. Includes solutions.