Logic Masters Deutschland e.V.

This is an Antiknight arrow sudoku puzzle with some ratio pairs. Hope you enjoy solving this one and feedback is always appreciated.

Rules:
1) Normal Sudoku rules apply:
Place the digits 1-9 into each cell of the grid. None of the rows, columns or boldly outlined 3x3 boxes contain repeated digits.

2) Kropki rules apply:
A black dot between cells indicates cell values with a 2:1 ratio. Not all dots are shown.

3) Normal Arrows rules apply:
The digits along each arrow must sum to the digit in the circled cell. Digits may repeat along an arrow if permitted by other rules.

4) Knight's move rules apply:
Digits must not repeat in cells that are a chess knight's move apart.


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