ChessPad LT - is freeware and is a "light" version of ChessPad 2.0. The only differences between ChessPad LT and ChessPad 2.0 is that the latter can import games in Portable Game Notation (PGN)  and comes with a wider selection of games and problems. ChessPad LT has many more features than the commercial application ChessPad 1.0. As a digital chess book, ChessPad LT lets you play over famous chess games and solve chess problems. The chess games are annotated in detail, with comments on moves appearing just below the chessboard. Reading a chess book normally involves setting up a chessboard and playing over games. When variations of possible move sequences given in the book are too hard to visualize in your head, you have to play them out on the board.