Solving a Hard Level Sudoku Puzzle with Remote Pair AND XY Wing!!!
29:19
Solving a Hard Level Sudoku Puzzle with Skyscraper Swordfish AND Forced Chains!!!
28:22
Hard Level Sudoku Puzzle Made EASY with Skyscraper and a 2 String Kite!!!
13:34
What is so UNIQUE about the Unique Rectangle?
27:03
Solve a HARD Level Sudoku the EASY way! X wing, W wing, XY wing, and even a BUG +1
17:10
X-WING SUDOKU Tuto 7 : Examples and search method. Avec des exemples et une méthode de recherche
16:12
Lookout for Hidden Singles, Pairs, Triples, and Quadruples in Sudoku
13:26
Remote Pairs Sudoku Chain Strategy
14:03