Is this stack of CNN layers valid? code-golf decision-problem neural-networks Background This challenge is about Convolutional neural networks, and its two main building blocks, namely Convolutional layer and Pooling layer. For simplicity, we ignore the "depth" of the images and intermediate tens...

Background Shakashaka is a puzzle on a grid, whose objective is to place some half-squares (right triangles) on the empty cells so that all the remaining contiguous regions form rectangles, either upright or 45 degrees rotated. Here is an example puzzle with a solution: Ignore the number clues ...

Baba is Golf If you haven't played Baba is You, you really should. After you come back, have a go at implementing it as a code golf. The idea behind this challenge is to have a bit more complicated, non-standard task with a bit longer answers. Game rules Alas, the challenge is not to implement th...

Finite models of algebraic theories code-golf logic Background Mathematicians are interested in all kinds of algebraic structures, e.g. groups, rings, boolean algebras. Generally, we have several operations (addition, multiplication, meet, join, etc.), and some equational relationships on the ope...

Wuhan Xi Estimates Challenge Create a program that takes two base-ten integer number inputs (w,x). The program should output the closest integer number that is x order of magnitude smaller than w, rounded downwards. The output should be zero if the result is less than 1. Test cases f(10,1) = 1...