Logic Masters Deutschland e.V.

Normal Sudoku rules apply.

1-5-9: Each digit in column 1 indexes the 1 in its row (i.e if R3C1=4 then R3C4=1). The same rule applies to column 5 digits indexing 5 in its row, and column 9 digits indexing 9 in its row.

Digits in a cage sum to the digit in that cage's top left corner. Digits cannot repeat within a cage.

Digits separated by an X sum to 10.

Digits separated by a V sum to 5.

Digits separated by a black dot must be in a ratio of 2:1 with on another.

Solve with f-puzzles or Penpa+

Puzzle:

Happy Solving !!!