Let's make both self-scoring and self-validating self-scoring as a scoring criterion tag The description of self-scoring as proposed is IMO well-defined enough to be a scoring criterion tag on its own, and I agree that there is a good potential for more interesting challenges of this type. As a r...

Cubax Folding Your task is to solve a new puzzle called Cubax. This toy is actually a Chinese puzzle whose expected “final” state is a simple cube. During the festivities, Cubax unfolded, because it cannot move when folded. Cubax is composed of N³ smaller cubes (elements) linked together in a kin...

Is it an action? abstract-algebra decision-problem code-golf Today, you will solve an abstract algebra challenge. Consider a set \$G\$, which, to simplify things, is a finite subset of \$\mathbb{Z}\$ containing \$0\$. It has a binary operation \$*\$, which for our example will be \$+\$, but your...

Python, 85 bytes print({(*sorted((i*3**j+j)%14for i in[1,5,j%5^22,9910>>j%5*4]),)for j in range(210)}) Try it online! Outputs {(0, 1, 4, 5), (6, 8, 11, 12), (1, 7, 9, 11), (2, 3, 12, 13), (2, 4, 9, 11), (0, 6, 7, 13), (4, 5, 11, 12), (4, 8, 10, 12), (8, 9, 10, 11), (2, 6, 9, 13), (1, 2, 5, 7), ...