Reached about level 12-13, thinking "wow these challenges are getting tough, they cannot get any harder can they?" Then realised that I'm old a third of the way through. I still have a long way to go, but these are really good puzzles.
I don't get the rules for this game. I managed to fill the first grid with even balance of items & no duplicates & it tells me there are 10 mistakes. Why?
Here is the grid:
xxxooo
oxoxox
oxooxx
ooxxxo
xooxxo
xoxoox
The instructions are really not clear & there is no examples of logic to solve this. Sorry conceptis, but this is your worst puzzle to date.
Its good, but not as good as the first one.
Main complaint, was the last puzzle. It was just too hard. All the previous puzzles I could solve by logical deduction. But the last one was just too much space and not enough pieces. In the end I had to resort to cheat/trial & error. Very dissatisfying. Keep making these games, they are great, but please play though them, to see if you can solve them by logic alone.