Chess puzzle software for beginners and intermediate chess players to learn and practice chess tactics. The chess puzzles of the program were selected from many training positions, chess compositions and real chess games. 900 Chess Puzzles provides the puzzle solution hints and solutions. The winning motifs of all chess puzzles are explained in details. The demo version includes the first 100 chess puzzles and the full version 900. The full version of 900 Chess Puzzles is compiled for the licensee personally with his or her name printed on the program title bars. The full version is delivered to the licensee via e-mail within 3 working days. The file size of the full version is 5.5 MB.