Logic Masters Deutschland e.V.

Rules:

Sudoku - Place digits from 1-9 in every cell without repeating in a row, column, or 3x3 box.

Cave - Shade all cells one of two colors; one is 'sunny' and one is 'shady'. All 'sunny' cells form an orthogonally-connected area. Any orthogonally-connected group of 'shady' cells must reach the edge of the grid.

Skyscrapers - A clue outside the grid indicates the number of cells seen in that direction, where the digit in any cell blocks sight of any subsequent cells of lesser value.
All cells seen by the given skyscraper clues are 'sunny', and all cells blocked (not seen) by skyscraper clues are 'shady'. (If a cell is in the intersection of two clues, it can only have one shading; it must be seen by both clues or seen by neither.)

A digit on a spotlight (circle) indicates the number of cells seen in orthogonal directions from that cell, including the cell itself, where cells of the opposite shading block vision.
All possible spotlights are given.

Fog of war - The grid is covered in fog. Placing correct digits will clear fog from nearby cells; no guessing is required.

Play the puzzle on Sudokupad

I hope you enjoy the puzzle! :-)