Logic Masters Deutschland e.V.

This was set for Scojo's Setting Saturday prompts. I redeemed this prompt to create a puzzle that highlights the interaction between sum dots and another constraint.

Thanks to lmdemasi for testing!

Rules:

• Normal sudoku rules apply.

• Digits in cells touching a gold Sum Dot must sum to the indicated total. Digits may repeat if allowed by other rules.

• Digits along an arrow sum to the digit in the bulb of the arrow.

• Digits along a double arrow line have the same sum same as the sum of the digits in the two bulbs. The two double arrow clues are intentionally ambiguous.