Quite a Quiet Little Quattroquadri 

BremSter solves "Quattroquadri: Whispers" by Raumplaner.
This Quattroquadri uses the German Whispers and Kropki Pairs constraints.
Solve in Sven's SudokuPad WebApp: sudokupad.app/...
⭐ ⭐ ⭐ Quads on Parade Puzzle Pack ⭐ ⭐ ⭐
A pack of 35 Sudoku Puzzles themed around the Quadruples constraint.
The pack is available for free from the following location: / 112465912
📋 Puzzle Rules:
• Quattroquadri rules apply:
- Place the digits 1-9 once each into the 3x3 boxes.
- Digits can't repeat in the same row, column or box of the 6x6 grid.
• Digits along the green lines must have a difference of at least 5 (German Whispers)
• Kropki pairs - no negative constraint (digits in cells connected by white dots are consecutive, digits in cells connected by a black dot have a 2:1 ratio. Not all dots are necessarily given).
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