Introduction

This is a puzzle game similar to sudoku. It can also be called Calcudoku, Mathdoku, or Kenken.
https://en.wikipedia.org/wiki/KenKen

For the developer, you can look for more details here.
https://www.codeproject.com/Articles/5375124/Kaldoku-game

How to set up a project

1. Just download a project, it is just a small program written in C# Windows Form.