Blocks is a game of strategy, with some elements from tetris (i.e. falling blocks).
You have a game board on which there are some colored blocks arranged in a matrix, they can be removed when two or more blocks of same color is in line, horizontally and / or vertically, but not diagonally.
The more blocks you have in a line, the greater score, but more about that later.
That's it, but it's a lot more difficult than it seems!