Logic Masters Deutschland e.V.

Rules: Put the digits 1 to 9 into each box such that no digits repeat in any row or column.
Toroidal Grid: The grid wraps both vertically and horizontally; Row 1 is adjacent to row 6 and column 1 is adjacent to column 6.
Renban: Purple lines contain a set of consecutive, non-repeating values in any order.
XV: Two cells separated by an X sum to 10. An X in the middle of four cells indicates that each diagonal pair of cells sums to 10. A V in the middle of four cells indicates that each diagonal pair of cells sums to 5.

Links:
PuzzleTV: https://tinyurl.com/yc2y8ddj
SudokuPad: https://tinyurl.com/55u8rt2d
PuzzleTV is recommended for a fully scrollable grid. When entering the solution code, make sure the grid is reset to the defualt position first.