Most difficult levels in existence?

[BitBuster]

On the other hand, a level like "Checkerboard I" is difficult because of guesswork - providing that the player isn't consulting a map. There's no reason for the blue walls to be in this level at all; they just make the level more needlessly difficult. There's no real learning or actual thinking in which the player has to take part during a failed attempt in order to solve the level on future attempts; it's merely, "Oh, so this wall is fake, so I guess I have to go through there."

Exactly. There's no satisfaction in completing those sorts of levels.

Some of the CCLP2 levels make me imagine an alternate universe in which "Totally Unfair" truly was totally unfair. In this alternate universe, the inner Teeth section is amended, so that even having a perfect map from "Totally Fair" would be useless. The only way to solve the level, apart from looking in an editor, would be by pure guesswork (and a lot of patience and gritted teeth).

What makes "Totally Unfair" a great level is the fact that once you figure out the secret (and it's an entirely logical process), you feel a sense of accomplishment.



Actually, for the record, I think there are much harder CC levels out there; I'm baffled as to why the Wiki rates "Totally Unfair" as a five-star level. Between the hint and the nearly-identical structure to "Totally Fair," it's far easier to figure out than something like YCTAOFNT.