The author presents a collection of 120 instructive positions, each of which with mostly three proposed solutions, followed by the detailed discussion of both the correct and the incorrect solutions in the second part. The selected examples stem from tournament practice, with a few exceptions, which are part of theoretical lines. The reader mainly has to look for tactical solutions, although positional-strategic aspects also occur. In the direct attack on the king, the action on the board often reaches its climax, and the attacker's success depends on finding the appropriate plan and executing it with precision. On the other hand, a premature or incorrectly executed attack generally turns into a boomerang for the attacker. Therefore, it's essential to assess whether a position meets the requirements for an immediate attack or whether further preparation is needed. Serious training with this testbook will help you to correctly assess critical situations of this sort and to ensure that the attack will be successful. FIDE Master Gerd Treppner (1956-2009) was a chess journalist and author as well as a successful tournament player.