Why Phistomefel's Ring is BRILLIANT and Why it Works
16:12
Lookout for Hidden Singles, Pairs, Triples, and Quadruples in Sudoku
24:53
How to Solve a Hard Level Sudoku Puzzle: Solve With Me
17:50
The Most Under-Used Sudoku Technique
13:34
What is so UNIQUE about the Unique Rectangle?
16:44
Lots of TRIPLES! Useful Sudoku Strategy - Great for Beginners to Know
15:48
The Sudoku BUG Problem and the BUG +1 Solution: A Subset to Uniqueness
14:03
This AMAZING Trick Can Solve Extreme Sudoku
29:09