Terrified by This Number ...
1:47:29
One Of The Most Beautiful (And Difficult) Sudokus Ever
26:18
But ... the Given Digit is WHITE!
54:43
"Surely One Of The Best Puzzles Of The Year"
23:39
Can I Beat Hikaru Nakamura With an Extra Chess Piece?
39:04
And now for a brief musical interlude.
24:36
Cinco alfabetos alternativos en inglés
1:04:49
This Puzzle Has Had Only 4 Solves In 4 Years!
21:29