First Generated Puzzle

We had managed to generate a completed puzzle from scratch in the previous section, following the first step of creating a viable solver. The next step is to take the completed puzzle and remove cells from it till […]



Planning Solving according to strategies is pretty straightforward. Generating puzzles is more complex and exercises your comfort with recursion. In general terms generating a puzzle follows these steps Create an empty grid Use brute force […]

Excel and SQL

Basic Solver

Strategies The first step is to put together a basic solver. In Sudoku, there are 3 Regions – Row, Column and Box, but you probably know that already if you are reading this. Other terminology […]