Normal sudoku rules apply. Numbers outside the grid indicate the sum of the numbers on their diagonal. Numbers may repeat when otherwise allowed. Digits in the little quadruple circles must appear in their four surrounding cells. Comments welcome!
Solution code: First row of puzzle, and fourth column of puzzle (read top to bottom). Enter as a string of 18 digits, no spaces.
on 17. November 2021, 16:30 by Moses*
Wieder mal Zeit gefunden für ein bisschen Gehirnjogging. Sehr schönes Puzzle, ideal für den Einstieg dank klarer und in sich aufbauender Lösungsschritte.
Besten Dank an PDN
** Super. Besten Dank an Moses.
on 16. August 2021, 11:12 by Johannes Quack
The 2-Circle in Box 7 is superfluous...
Edit: Ah right! Good on you. :-)