#brain melter

In today's blog post, we've got a pair of brain teasers for you to solve, submitted by your fellow PuzzleNationers!

[Image courtesy of SharpBrains.com.] We love brain teasers here at PuzzleNation Blog. Whether they’re riddles, logic problems, math puzzles, or challenging bits of wordplay, we take on all comers here. We’ve solved some doozies in the past, like the Brooklyn Nine-Nine seesaw brain teaser, the diabolical long division brain teaser, and the curious way to tell time brain teaser. In April 2019, we…

In today's blog post, we've got the solution to The Ten Divisibilities brain teaser we posted last month in honor of John Horton Conway!

Last month, in honor of mathematician and puzzly spirit John Horton Conway, we shared two of his favorite brain teasers and challenged our fellow PuzzleNationers to crack them.

Two weeks ago, we shared the solution to puzzle #1, The Miracle Builders, and offered a few hints for puzzle #2, The Ten Divisibilities.

Now that we’ve heard from a few solvers who either conquered or got very close to…

In today's blog post, we explore the strange mystery of Florida's Coral Castle!

[Image courtesy of Bitter Southerner.]

At the center of every great mystery, there is a puzzle. When people look at the pyramids of Egypt or the Moai statues of Easter Island, the puzzle at heart is obvious: how? How were these incredible objects created?

A similar, and no less puzzling mystery, can be found much closer to home for most Americans: the Coral Castle of Florida.

[Image courtesy of

In today's blog post, we have the solution to one of our Conway puzzles (plus a hint for the other one)!

Two weeks ago, in honor of mathematician and puzzly spirit John Horton Conway, we shared two of his favorite brain teasers and challenged our fellow PuzzleNationers.

So today, we happily share the solution for puzzle #1, The Miracle Builders.

I had a window in the north wall of my house. It was a perfect square, 1 meter wide and 1 meter high. But this window never let in enough light. So I hired…

In today's blog post, we've got two brain teasers for you to unravel, in honor of John Horton Conway!

Last week, we penned a post celebrating the life and puzzly legacy of mathematician John Horton Conway, and several of our fellow PuzzleNationers reached out with their own thoughts or questions about Conway.

One recurring subject was about his love of puzzles and what kind of puzzles he enjoyed solving. So, naturally, I went hunting for some of Conway’s favorite puzzles.

As it turns out, Alex…

In today's blog post, we look at a new twist on Tetris that sends you in unexpected directions!

[Image courtesy of Eurogamer.]

Tetris is the ultimate puzzle game. If you somehow haven’t played it, you’ve at least heard of it. The brainchild of Alexey Pajitnov conquered the world, not only making Nintendo’s Game Boy a bestselling video game platform, but turning millions of puzzlers into gamers and gamers into puzzlers as well.

Those iconic little Tetromino shapes are instantly…

In today's blog post, we ponder one of the great gaming questions of our time: Have we been playing Uno wrong all along?

The holiday season is one of the few times in a given calendar year I play games with most of my family members.

The necessity of gathering for multiple events — it takes two or three days to see everyone around Christmastime, based on geography, family obligations, and such — creates opportunities for group gameplay that simply don’t exist other times of the year.

This got me thinking about…