Logic Masters Deutschland e.V.

I made this puzzle following Scojo's prompt to use Split Pea lines along with difference dots. This time I wanted to have some clues on the note spaces for a doppelgänger grid.

• Doppelgänger Sudoku:
  • Fill each cell of the main 9x9 grid such that every row, column and 3x3 box contains a 0 and eight different digits from 1-9.
  • No two rows, no two columns and no two boxes may be missing the same digit.
  • For each 0 in the grid, the digits missing in its row, column and region must be three different digits.
  • Fill each outer cell with the digit missing from the corresponding row, column or box.
• Split Pea lines: The digits along a green line sum to a number obtained as a concatenation of the two digits in the circles attached to it, in at least one order. (The sum doesn't include the circled digits.)
• Digits joined by a white dot have an absolute difference equal to the number on the dot.

Online in Sudokupad

See also:

• how many entropea puzzles can they be?
• the compeationist
• nopil nahual
• zuul with ThePedallingPianist
• a brutal bliss beyond this empty defeat
• pull prank