The Japanese brand Beverly started producing not long ago some puzzles with no pattern at all. Just a solid black or a solid white puzzle. They first commercialized small 100 pieces puzzles of this type. Then they got bolder and published 150, 300, and 1000 pieces versions.
Finally, they came up with a 2000 pieces version. If the level of difficulty can be measured as difficult, very difficult, and extremely difficult, this puzzle defies classification and it is defined as Torture. In fact, there is a warning in the box: For masochists only. Users refer to it as white torture, white hell, pure hell, or pure white hell. There are some people that have completed the 1000 piece version, but not many brave enough to attempt the 2000 piece version. I wonder whether it is more difficult than the 5000 piece version by Ravensburger of The Night Watch.
One day, talking about puzzles and movies, @aschenbach13 pointed out that there was an old movie where such puzzle appeared: Sleuth, directed by Joseph L. Mankiewicz in 1972. That means that they came up with the idea of a white puzzle 40 years before the Japanese manufacturer.
A white puzzle and other games
Andrew Wyke (Laurence Olivier) is a...