Not bad, Claude Fable.
It took Fable 20 minutes to create a complete and beautiful implementation of the game "Kensington" in HTML/Javascript.
You don't know Kensington? Nobody else does these days. It is a fun game designed in the late 70s, and, although it is a much more sophisticated version of "nine men's morris", it didn't really become a classic.
And that's great, because testing an AI with something well-known, i.e. "copy code from your Github training data to output" is not a good way to test an AI. But I checked: except for a wikipedia page and a very rudimentary "enter coordinates on keyboard" repo there is nothing.
What's also fun about Kensington that its board consists of wildly arranged triangles, squares and hexagons that refuse to be mapped to a simple n-dimensional array or similar.
So I created a little spec.md and asked Fable to build the app. And with only one exception (I was telling it that the original game had slightly translucent flat cylinder stones, and it gave me different ones, it did a great job.
Its alpha-beta engine works beautifully, equal to me at level 4, destroys me at level 5, and I like the UI layout, how it offered a strong, compact in-game rule explanation etc.
Want to try it out? Here it is - pure browser game, no tracking, no ads, just the game.
https://agsteiner.neocities.org/appsngames/Kensington/
#claude #fable #vibecoding #kensington #boardgames #browsergame


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