New Research

Here, we calculate the Grundy number of step chocolate games.

We discovered the necessary and sufficient condition for step chocolate to have Grundy number that is equal to the nim-sum.

nim and Grundy

If a chocolate game satisfies this condition, we get Grundy number by nim-sum without calculating Grundy number recursively.

We are the first person who discovered this condition.


If you are interested in our paper on the theory of chocolate games, plese read this.

A method for high school mathematics research project