I encountered this puzzle called the Magic Hexagon from the book "Professor Stewart's Cabinet of Mathematical Curiosities". The goal of this puzzle is to place the number 1 through 19 in the hexagon so that any straight line of cells (3, 4, or 5 cells) in any directions, add up the magic constant, 38.

And to help myself solve this, of course, I created and printed the hexagon plate and the numbers out.

Please enjoy!