Yup, it's Columns.

It's clearly a Tetris clone, picking a nationality to focus on as you clear falling blocks and whatnot, but rather than rotating blocks you decide where each one is in the column. You can clear by connecting 3 or more in a row horizontally, vertically, or diagonally. Rarely you get a block that clears all of a gem.

There's potential but like most first iterations of a Tetris clone, it doesn't do a whole lot.