Mjög góð þjálfunarbók The book covers exactly what it promises to cover; they have a bit of everything in the examples ranging from silent knight maneuvers to fancy sacrifices. Their idea in the book is to help players train for tournaments by working on all aspects of the game and looking at problems in a wholesome way. They have a wide variety of topics from a wide variety of players. For example, there is an exercise of beautiful tactical play by the former World Champion Viswanathan Anand against Super Grandmaster Alexander Grischuk. As you solve the problem and move on, you will see another exercise played by their students rated around 1300. This is a beautiful way to illustrate that chess is chess, no matter who is playing the game. Just a heads-up to the reader, the latter is much harder to crack! Some of the examples like Jeffrey Xiong missing a queen trap or Nihal Sarin missing a simple way to control an open file to gain an advantage show that even the best of the best make mistakes. Even though there may be easy puzzles you can solve in a few minutes or real Titanic’s that take hours to sink in, you must consistently train with them.