dxSudoku #27 Skyscraper Puzzle Solving Technique
14:01
dxSudoku #29 Empty Rectangle Puzzle Solving Technique
15:00
dxSudoku #68 Finned X-Wing Puzzle Solving Technique
17:57
dxSudoku #102 Improved Hidden Triple Search Algorithm
19:46
These 2 Tricks Can Solve Most Of The World’s Hardest Sudokus
28:22
Hard Level Sudoku Puzzle Made EASY with Skyscraper and a 2 String Kite!!!
2:15:28
Tropical Bossa Jazz ~ Beautiful Brazilian Jazz Music For a Positive Vibe ~ January Jazz Music
4:00:37
4 Horas Chopin para Estudar, Concentrarse, Relaxarse
2:10:25