Logic Masters Deutschland e.V.

This puzzle is inspired directly by the game Deltarune by Toby Fox!! If you know, you know, but I cannot recommend this game (as well as its predecessor, Undertale) enough. It has been a huge inspiration to me in so many aspects of my life, so I wanted to create something related to it! Perhaps if I can come up with more ideas for character-related puzzles, this could become a series :)

RULES:

• Normal sudoku rules apply.
• Negative Diagonal: Digits cannot repeat along the negative diagonal, marked with a thin red line.
• Antiknight: Cells a knight's move apart (in chess) may not contain the same digit.
• Quadruples: Digits in the small white circle must appear in the four surrounding cells, exactly the same amount of times in which they appear in the circle.
• Dutch Whisper Lines: Along the thick black lines, consecutive digits must have a difference of at least 4.
• Arrows: The digits along an arrow sum to the digit in the respective red circle, and may repeat if allowed by other rules.
• Kropki dots: Digits in cells separated by a black dot have a 2:1 ratio.

Click here to play on SudokuPad!