Logic Masters Deutschland e.V.

This puzzle is a variant of a Jigsaw Sudoku, and combined with the new rules that I use for my previous puzzle Nestification Jigsaw.
rule:

1. Jigsaw: Place the digits 1 through 9 in each empty cell. Digits must not repeat within the same row, column, or box, the boxes should find out by solver;

2. Kropki Rules: A black dot between cells indicates cell values with a 2:1 ratio, A white dot between cells indicates cells with consecutive values. And the two cells adjacent to the dot do not belong to the same box, Not all dots are given;

3. Nestification: Somewhere in the grid there is a 4×4 region should fill with 4 numbers from 1~9, and it should be exactly divided into 4 parts with 4 cells like a small jigsaw sudoku, the location should find out by the solver;

4. Skyscrapers: Each digit in the small jigsaw represents the height of a building in its cell. Taller buildings obstruct the view of shorter ones behind them. Digits beside the small jigsaw give the number of buildings visible from that vantage point in the digit's row or column.

Here is a example puzzle：

CTC link.For example puzzle.

Main puzzle：

CTC link.Have fun solving!

I hope you like it.

Your feedback and comments are highly appreciated :) Enjoy !