A classic block puzzle game is a type of puzzle game that involves fitting different-shaped blocks together in a confined space. It is often played on a square board with a grid pattern where the player is given a set of blocks made up of smaller units, such as squares, that must be placed in a way that fills up the board completely.

The gameplay of a classic block puzzle game is relatively simple. The player is given a set of blocks that they must arrange on the board to create a solid line. Once a line is complete, it disappears, and the player earns points. The goal is to create as many lines as possible and score the highest points.

The game can be played in various modes, such as timed or untimed, and may have different levels of difficulty, depending on the complexity of the shapes and the speed at which the blocks appear on the board.