This course includes more than 3300 new puzzles for mating in 4 moves. You will have to use your fantasy and precise calculation in order to find a correct way of attacking the king. After going through this course you are sure to improve your skills and abilities considerably and will not miss an opportunity to employ a nice little combination in a practical game of your own. The program is intended both for club players and intermediate players. All the puzzles are taken from practical games in 2011-2020 years and arranged according to the names of pieces and difficulty levels. A great number of puzzles makes the course an excellent tool for quick training advanced players. All puzzles are guaranteed new, with no repetition with previous courses.