To solve the puzzle, decide where you want a tile to go, and imagine a loop that includes that tile, its destination, and the empty square. Then move tiles around in that loop. Sometimes you will ...

Now, more than 122 years after it was first proposed, Kamata and two other mathematicians have finally proved that a solution ...

Here’s how to solve the Billiard Room dart puzzle in Blue Prince. Every time you draft the Billiard Room, you’ll be able to ...