A puzzle that's not hard to grasp.
57:11
A knotty problem.
20:17
2 AMAZING Sudoku Tricks That Changed My Life
17:53
The Sudoku Trick All Expert Solvers Know
45:06
With Boughs of Holly
41:20
Going round and round and round...
19:25
Send in the clones.
32:20
This Amethyst based puzzle is a real gem!
27:47