The best way to improve your game is to train yourself on your computer in solving problems from practical games. Learn to attack and win in the opening: a great number of puzzles will give you a fine chance to master every standard method of attacking the king in your chosen opening and help you to come out on top in your future games. This course is intended for club players and includes more than 900 new puzzles for mating in the openings. All the puzzles are taken from practical games in 2011-2020 years and arranged according to the names of openings. All puzzles are guaranteed new, with no repetition with previous courses.