Solving an SE 11.9 Puzzle with Logic

List of all dxSudoku videos: https://www.youtube.com/channel/UC2N60jDPloV5_imTYKIVH2Q/videos?view_as=public

In this video demonstrated Method 3 (M3FC) Puzzle-Solving Technique which is an improved way of doing Forcing Chains and Nets.

Forum thread having the hardest puzzles I could find:

http://forum.enjoysudoku.com/the-hardest-sudokus-new-thread-t6539.html

Видео Solving an SE 11.9 Puzzle with Logic канала dxSudoku Channel