Logic Masters Deutschland e.V.

Normal sudoku rules apply.

This puzzle combines two Sandwich Sudoku puzzles:
- Some of the clues outside the grid are part of a standard 1-9 Sandwich Sudoku puzzle: these clues indicate the sum of the numbers 'sandwiched' between the numbers 1 and 9 in the given row or column.
- The rest of the clues are part of a 5-7 Sandwich Sudoku: the clues indicate the sum of the numbers sandwiched between the numbers 5 and 7 in the given row or column.

(Every clue refers to the sum of a different set of numbers in the grid, but the clues are in no particular order considering the given row or column.)

For example this would be a valid solution for a row where 11 is the clue for the 1-9, 6 is the clue for the 5-7 puzzle:

11 | 6 7 2 | 4 5 1 | 8 3 9 | 6

The puzzle has a logical solution path, you don't need to brute-force through long chains of possibilities during the solve.

Have fun!

Matyas