Logic Masters Deutschland e.V.

So Calvinball came up with this concept for a Doppelgänger puzzle based on a meme from a particular social platform, and it has a constraint strongly reminiscent of Split Peas. Hope you like it!

• Doppelgänger Sudoku:
  • In the 9x9 grid, every row, column, and box contains a 0 always, as well as eight out of the nine digits from 1 to 9 (ie, it's missing one digit).
  • 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, its column, and its box must be three different digits.
• Un-split Pills:
  • The digits on a pill represent a two digit number when read left-to-right or top-to-bottom. Numbers may have leading zeros.
  • The number on a pill is equal to the sum of all digits in orthogonally adjacent cells to the pill, that may include cells in other pills but it doesn't include the cells of the pill itself.
• Digits joined by an V or X sum to 5 or 10 respectively.

Online in Sudokupad (and with extra note space).

See also:

• the year of the dög
• alte karte / ferneiland
• got too many pages stuck together + zuul with ThePedallingPianist
• split pearsonality / dopealgänger
• nopil nahual
• a brutal bliss beyond this empty defeat
• pull prank