I can't tell if you're trolling or are just not up to date on game AI, so assuming the latter: you have to think beyond chess. There's much more info on interactive storytelling in the AIIDE proceedings I linked to, it's a very active area of research. Academically it goes back at least to the mid 90s, Oz project at CMU for example, or MIT Media Lab projects. And in commercial production, interactive stories are as old as the industry, probably the best early example is Infocom but back then there wasn't much AI driving it; it's not until the 2000s that people started actually building "drama managers" for shipping games to introduce dramatic conflict dynamically.