Tag Archives: logic puzzle

A logic puzzle with an artistic twist!

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Puzzles are truly a worldwide phenomenon. So many different cultures and groups have created fantastic, long-lasting puzzle styles that continue to resonate across decades and even centuries.

In the past I’ve endeavored to make PuzzleNation Blog a bit more PuzzleInternational by sharing overseas puzzle flavors from German and Spanish puzzle books that’ve been passed to me by fellow puzzlers.

And I’m so excited that another friend of the blog has shared an absolute treasure trove of international puzzle books with me, ensuring that our puzzly world tour will continue!

So today, instead of examining a single puzzle book and getting a glimpse into a particular culture’s brand of puzzles, I’ve picked a particular type of puzzle and we’ll be exploring magazines from several different countries dedicated to that puzzle!

Let’s take a global look at Logic Art!

Logic Art puzzles (also known as Pixel Puzzles, Pic-a-Pix, Illust-Logic, Griddlers, Hanjie, and Picture Puzzles) are a wonderfully artistic take on deduction-style logic puzzles.

Essentially, you’re given an empty grid with numbers along the top and left-hand side. These numbers indicate black squares to color in and white squares to leave alone. By deducing where to place the black squares and white squares, a pixelated picture will emerge!

(For more complete rules and solving tips, check out this helpful guide from our friends at Penny/Dell Puzzles.)

So, the difficulty of the solve and creativity of the solution image are only limited by the puzzle constructor’s imagination and your own puzzle savvy.

Some magazines, like these German puzzle books, stick to the simple black square/white square mechanic…

… while others, like this Cyrillic magazine with several colors and this Hungarian magazine with splashes of red, encourage greater use of color in your Logic Artwork.

These smaller, digest-sized Cyrillic magazines offer multiple grids per page with simpler solution images.

But look at the level of detail some of the larger grids offer!

I must admit, though, I’m partial to these Japanese puzzle books, if only for this particular solution image:

Logic Art is obviously a puzzle with global appeal. Although not as universal as Sudoku (or as intuitively easy to solve), it clearly strikes a chord with solvers across the world.

It’s always a treat to explore puzzles from another culture’s perspective. Thanks for taking this journey with me today.

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Happy Thanksgiving, puzzlers and PuzzleNationers!

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To celebrate this most festive and familial of days, we couldn’t help but cook up a little puzzle for you and yours today. Please enjoy this Thanksgiving puzzle, and have a safe and happy holiday!

Five Houses, One Big Meal

This Thanksgiving, five families (the Corbins, the Johnsons, the McDashes, the Whittons, and the Edgertons) agreed to each bring one part of Thanksgiving dinner to five other households in the neighborhood. The options were Turkey, Stuffing, Sweet potato, Turnip, and Rolls.

Each family dropped off a different food at each house at a different time (9 AM, 10 AM, 11 AM, Noon, and 1 PM). No two families gave the same food to the same house, or showed up to the same house at the same time.

The table below displays each family’s name, each household they visited, what food they dropped off, and what time they dropped off the food. Some of the boxes have been filled in already. Can you complete the chart and figure out what time each family dropped off each food?

Thanks for visiting the PuzzleNation blog today! And say, why not save yourself the hassle of Black Friday madness by checking out our Holiday Puzzly Gift Guide?

Hold on, let’s be logical about this…

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A few weeks ago, I did a blog post exploring the history of paper puzzles, comparing relatively new puzzle innovations like crosswords and Sudoku — crosswords are nearing their 100th anniversary, and Sudoku has only been around a few decades in its current form — to a much older style of puzzling, the riddle.

But it occurs to me that another branch of puzzles, logic puzzles, can trace their formative roots nearly as far back.

Logic puzzles are a curious breed of puzzles, since they rely less on grids and trivia and more on deductive reasoning. (Yes, many solving styles utilize grids, like this one from our friends at Penny/Dell Puzzles, but they’re not strictly necessary.)

If I was to chart the evolution of puzzles like that of animals or plants, riddles and logic puzzles would be offshoots of the same ancestor. Riddles are actually very simplistic logic puzzles, since they often rely on a single twist or turn of phrase.

For example, there’s the riddle “what gets wetter as it dries?”

The answer is “a towel.” The riddle relies on logical misdirection. The structure implies a passive voice (something becoming dry) but its actual structure is active voice (something actually drying another object).

This is known as a garden path sentence, and a terrific example is this quotation often attributed to Groucho Marx: “Time flies like an arrow, fruit flies like a banana.”

The main difference between the two is the complexity of logic puzzles as they’ve developed. Riddles are a one-and-done trick of wordplay, while logic puzzles are multilayered exercises in deduction.

So, from riddles, it’s easy to imagine mystery stories and whodunits as the next precursor in the development of logic puzzles. From the early days of the genre’s creation at the hands of Edgar Allan Poe to its explosion in popularity under the quick and clever pens of Agatha Christie and her fellow authors, the plot of virtually every mystery story is a logic puzzle in itself.

The arrangement is similar. You’re given your setting and the circumstances that gathered the players together. Then you’re given the pertinent information on who was where at a given time, and it’s left to you (and the ubiquitous detective) to unravel the truth from a convoluted mishmash of information.

Except for the detective, that’s the modern day logic puzzle exactly.

(I snagged this helpful image from www.logic-puzzles.org.)

Heck, there are even some mystery stories that are considered unsolved, practically waiting for an enterprising logic puzzle fan to find the key piece of evidence that will unlock the entire story.

Frank Stockton’s story “The Lady, or the Tiger?” comes to mind, as does Stanley Ellin’s “Unreasonable Doubt”. (I encountered these stories in Otto Penzler’s collection Uncertain Endings: The World’s Greatest Unsolved Mystery Stories.)

And in case you’re curious as to why I’m rambling about riddles and Poe and how they directly or indirectly influenced the evolution of logic puzzles as we know them… the answer is simple.

With the hundredth anniversary of the crossword fast approaching, it’s made me wonder just how long the spirit of puzzle-solving has been with us as a civilization.

And when you can trace logic puzzles back hundreds of years and riddles back thousands of years, it’s hard not to smile and imagine that we’re enjoying the same mental and puzzly challenges generations and generations of others have tackled in the past.

It’s a humbling and heartening thought.

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