The main occupation of a chess player when playing is the number of options. Moreover, sitting at the board, he is engaged in this process continuously, regardless of what stage the party is in. What is clear is the extreme importance of the ability to count options and see tactics for anyone who likes to move figures on a plaid board. No matter how important all the other components of the game are, it is the score and the tactics inextricably linked with it that ultimately decisively affect the outcome of the game. The author, a well-known grandmaster and coach, offers a complete, systematic and well-grounded look at these fundamental components of a successful game. For a wide range of chess lovers.