Logic Masters Deutschland e.V.

Inspired by Xenonetix's A Mathematical Phenomenon. Note that the puzzle is still unique without the dots in the grid, but it might need some bifurcation.

Rules:

• Sudoku: Place digits 1-9 in each row, column and region exactly once.
• Full Rank: The digits on columns and rows, read in both directions, make a total of 36 nine-digit numbers. Cells outside the grid have a value equal to the rank in ascending order among those 36 numbers for the indicated column or row in the direction of the cell.
• Kropki: White dots connect two consecutive numbers, and black dots connect two numbers where one is double the other. Not all dots are necessarily given.

Solve online:   penpa   ctc

The version without the dots in the grid is also provided for those who are interested.   penpa   ctc

Enjoy!