Logic Masters Deutschland e.V.

This is my first puzzle, so the difficulty measure may be slightly inaccurate - I can't really compare with puzzles I didn't design, as obviously the tricks this uses are ones I understood in order to put them in here.

Rules

1] Normal Sudoku rules apply.

2] The cages are "killer cages", for which the totals must be determined. Digits cannot repeat within a cage. No two cages have the same total.

3] Draw a single continuous orthogonal path - the train - that passes through each cage exactly once, starting in one of the circles and ending in the other. It enters the cages in descending order of their values.

4] Black dots indicate that one cell is double the value of the other. The line may not pass through black dots.

5] More-than symbols ">" indicate that the value in the cell at the wide end is greater than the cell at the narrow point. The line must pass through all these symbols, and must do so in the direction they are pointing.

Click on the image to play