Logic Masters Deutschland e.V.

Rules: Normal Sudoku Rules Apply. Place digits 1-9 every row, column and box in the grid.

There is a train travelling through the grid that passes through stations, meadows, forests, and tunnels. In each box, the train passes through each of the 4 landmark cells, which are the same 4 digits in each box. The train ONLY passes through these 4 digits in each box; it does not pass through non-landmark cells.

The solver must construct a closed loop path around the grid, so that train passes through all four landmark cells exactly once in all boxes except box 5. The train cannot and does not ever enter box 5.

These landmarks have the same specific digit in each box. The highlighted cell is a station. (While it is not needed for a logical solution, the solver may complete the "map" by applying the following inequality to distinguish between landmarks: meadow > forest > tunnel).

Numbers outside the grid indicate the sum of digits up to (and including) the station from that direction. Killer Cages. Digits do not repeat in a cage and sum to the total (if given) in top left corner. Kropki Dots. Cells sharing a black dot contain digits in 1:2 ratio. Not all dots are given

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