Logic Masters Deutschland e.V.

This is the second part of a collection of puzzles I have created using the octoquadri ruleset invented by Analytical Ninja. I set a bunch of these puzzles across several months because I found the ruleset interesting, and once I had enough I collected them into a pack. I'm now uploading the pack here, split into 4 parts roughly according to difficulty, each containing 4 puzzles.
You can download the full pack here.

Here are the links:

Radar

Courtyard

Slanted

Feeling a Little Purple

Rules: (With the puzzles each variant appears in)

• Octoquadri: (All puzzles)
  Fill the grid with 8 of the digits 1-9, such that each digits appears exactly twice, and no digit repeats in a row, column, or 2x2 box.
• Kropki pairs: (Slanted)
  Digits seperated by a white dot must be consecutive. Digits seperated by a black dot must be in a 1:2 ratio.
• Inequality: (Courtyard, Slanted)
  The inequality sign points to the smaller digit.
• German Whisper: (Radar)
  Adjacent digits on a green line differ by at least 5.
• Renban: (All puzzles)
  Digits along a purple line form a set of non-repeating consecutive digits.
• Region Sum Line: (Radar)
  Digits on a blue line sum to the same value in each region it passes through.
• Thermometer: (Slanted)
  Digits along a thermo increase from the bulb end.
• Killer: (Courtyard, Slanted)
  Digits in a cage do not repeat and sum to the total in the top-left corner (if given).
• Little Killer: (Feeling a Little Purple)
  Digits along an indicated diagonal sum to the total given.

There other parts of this pack can be found here: Part 1 Part 3 Part 4