Tricky, scored 4/10. The Berlin Wall and Superman groups were very difficult in my opinion, but the anagrams running through the board were very clever.

4/10...There were somethings I really liked like the anagrams. But I think the Superman line is simply wrong, there's only 2 of the 3 on 2 of the 4 answers. The Berlin wall line is something you don't see a lot of here on Puzzgrid.

I made this grid, and agree that it's completely unfair - hence the name I posted it under.

The coral snake group is one that you could only stand much chance of solving if you knew what a coral snake was. I think the other members do strictly meet the criterion, but perhaps not in all versions, and the connection is not something you'd be likely to stumble upon.

Personally, I might have got that one through a lifelong fascination with biology, but I would never have picked up the Berlin Wall one. However, it's not entirely impossible for someone older to have that knowledge.

All in all, there's probably someone in the world who could get full marks, but it's still an unfair grid. Congratulations to both on scoring 4, which is better than I thought people would get.

7/10

With the exception of the Coral snakes group, the rest have been pretty easy, especially the Inches group and the Reptilians one. The Berlin Wall one does require specific knowledge to name the connection, although establishing that connection is pretty easy.

I don't think it deserves being named “unfair”. If anything, this group is quite fair.

0/10, but very clever grid.

4/10 as well. Noticed the Meg Ryan anagram and then started to look for anagrams of other countries in those two difficult groups..