Kubok16

Kubok16 is a math puzzle similar to Sudoku.
There are 16 blocks that must be filled with numbers.
Some of the blocks already have numbers in them.
Each number from 1 to 16 must be used.
No duplicate numbers are allowed.
Each row must sum to a given number.
Each column must sum to a given number.
The fewer numbers already given make the puzzle more difficult.
8 numbers given is usually an easy puzzle.
6 numbers given is usually a medium puzzle
4 numbers given is usually hard or an expert puzzle.

This program includes several games to solve.
The program can be used to create new games.
The program can solve solutions to any Kubok16 game no matter how difficult.
The program tests every possible combination.
The program is written in C# language.
The source code is a Visual Studio C# forms program.

If you are interested in math, try my "Surface Explorer 3D" program:
https://sourceforge.net/projects/surfx3d/