In 1840, the first book was published that dealt exclusively with Königrufen: "Thorough and easy-to-understand instructions for learning the popular game of Königrufen Tarock, or the art of learning to play the same in a short time, both theoretically and practically, according based on rules and examples." However, the rules differed considerably – in this description of Königrufen, players could only announce "Rufer" ("Caller") contracts, namely as a "Dreier" (with three cards from the talon) or as a "Solo" without talon. If you wanted to play alone, you could call a King in your own hand.