This is a quiz based on very hard puzzles taken from master games, not from composed problems. Because of the difficulty and complexity of the puzzles, you score points just for getting the first move right. You do not have to see all the way to the end. At the end of the quizzes, you are rated based on how many you got right.
Bobby Fischer Teaches Chess Learn to Think the Way Bobby Does
Learn to think the same way Bobby Fischer did. This is the fastest, most efficient, most enjoyable book on chess ever compiled. As the student, you start at the beginning and progressively develop your skills as you apply Bobby Fischer's principles and learn how to play Chess the Bobby way.