The answer is: the name of the game being played.
The text is developing a description of Alejandro´s moves in a very detailed way, but, as readers, lacking the name of the actual game being played, or a more detailed description of it and its rules, makes it difficult to comprehend what is really at stake and to complete the hermeneutic process. If the writer of the text provided this context information, more information could be later provided, although this (the name of the game) certainly needs to be the first addition.