Logic Masters Deutschland e.V.

Play the sudoku here:

Solve on SudokuPad

Rules:

Normal Sudoku rules apply. Fill the grid with the digits 1-9, each appearing exactly once in every row, column, and 3x3 box.

The numbers outside the grid are either Sandwich Sum clues, Skyscraper clues, or both simultaneously. In the completed grid, exactly 5 of the outside clues are valid as Skyscraper clues and exactly 5 are valid as Sandwich Sum clues.

Sandwich Sums: An outside number gives the sum of the digits between the 1 and the 9 in that row or column.

Skyscrapers: Treat each digit in the row or column as the height of a building. An outside number indicates how many buildings are visible from that direction, counting only buildings not hidden by taller ones in front.

An X between two cells means the digits in those cells sums to 10. A V between two cells means the digits in those cells sum to 5.

View my other recent puzzles:

1. Consecutive Territories (5/5 Difficulty):
   Solve on SudokuPad
2. The Knight's Battle Axe (4/5 Difficulty):
   Solve on SudokuPad
3. Quantum Relay (2/5 Difficulty):
   Solve on SudokuPad
4. 14's a Killer (2/5 Difficulty):
   Solve on SudokuPad

Any feedback is welcomed!