Here is one Curve Data puzzle.

# Chaos

Here is one Curve Data puzzle.

# Puzzle

Here is one Curve Data puzzle.

# Frolic

Here is one Curve Data puzzle.

# Beetle

Here is one Curve Data puzzle.

# Serpent

Here is one Curve Data puzzle.

# Masyu Inflatable

Here is one innocent-looking 5 by 5 Masyu puzzle:

Inflate it to twice its original size, though, and it turns into a full-blown 10 by 10 Semi-Liar Masyu:

# Cipher Shikaku Twins

# Masyu Twins

# Star Battle Pentominous

Here is one Star Battle Pentominous puzzle.