Logic Masters Deutschland e.V.

Warning, this is a 5 star for a reason. You'd better check the previous puzzle before tackling this one.

Standard sudoku rules applies. Fill the grid with numbers from 1 to 9 so each digit occurs exactly once in every row, column and 3x3 box.

Skyscraper rule applys. Each digit in the grid is a building of its height. Digit outside is the first digit that can't be seen/first to be blocked from that direction.

Yes, it's solvable. However, in case you can't logically solve it, here's an easier version. If you actually try to find the break in in the first one, easy version would be really easy.

This puzzle is made by Old Miles from China. It's a lot like previous one, doesn't it. In case you get stuck, I put hints in the previous one.The one with structure is harder but easier break in and less tedious. Still, that clues probably the strangest orientation I've ever seen. A classic 6X6 clue is actually feasible in 9X9. Now that's interesting.

The reason why it's a 5 star is that it again, shows how small change can effect the whole solution. Two cell kropki expand the calculation cells, resulting in structured rows or columns. Fragile puzzle is the exact opposite of kropki, where black dot is way annoying then white dot. This one is the exact opposite of skyscraper. Small clues and big numbers are no longer the favor. Here is question, kropki and skyscraper both have a opposite trick set, how about other variant.