Tight-Fit: A Truly Tight-Fitting Sudoku Variant Puzzle
24:04
Equality Cages 118: Sudoku Variants Meet One Another - Consecutive Sum Lines Meet Equality Cages
53:41
Reflected Knights: Another Sudoku that I know Nothing About, Will it be Another Disaster?
35:44
Centipede: This Sudoku arcade was difficult for me
16:23
Improve At Sudoku: What To Do When You Get Stuck
38:58
A beautiful puzzle to celebrate Christmas.
8:41
17 and Sudoku Clues - Numberphile
34:43
A Mother's Love: Heartwarming Sudoku Strikes Again
15:28