Riddle Stone Saga brings Picross-style number puzzles to Facebook

Ooblada’s Riddle Stone Saga offers brain teasers on Facebook, as players are challenged with creating images by filling in the appropriate squares on a grid. The game is similar to Picross, as players must look at the numbers associated with each column or row on the grid to know how many squares to fill in, and how many to avoid.

Puzzles come in different sizes and complexities, but there will typically be a handful of rows or columns that give you a starting point.