The Handbook
This program is a clone of the well known game Tetris. You must fit the falling pieces to form full lines.

Introduction
This program is a clone of the well known game Tetris. You must fit the falling pieces to form full lines. You can rotate and translate the falling piece. The game ends when no more piece can fall ie when your incomplete lines reach the top of the board.
Every time you have destroyed 10 lines, you gain a level and the pieces fall quicker (exactly the piece falls from a line each 1/(1+level) second).