Pine Tree
Rules:
- Classic Sudoku:
Every row, column and 3x3 box must contain every number from 1 to 9.
- German Whispers:
Every two consecutive digits along a green line must have a difference of at least 5.
- Parity Lines:
Every pair of consecutive cells along a brown line must contain an odd digit and an even digit.
- Arrows:
Numbers along an arrow sum up to the total in the circled cell.
Play it online in SudokuPad.
This puzzle is also on Logic Masters Germany.