Medium Difficulty IQ Metal Puzzles

There are over 60 different IQ metal puzzle designs with differing levels of difficulty. This section contains what we would classify as the more challenging "medium" difficulty puzzles. Ideally suited to those looking for more of a challenge. 

Remember - just because some people will find these "not too bad" to solve, does not mean everyone will. An enjoyable brainteaser for some, a longer haul for others...