Logic Masters Deutschland e.V.

SudokuPad: https://sudokupad.app/nfepfl71s3

Sudoku Puzzle Rules:

Normal Sudoku rules apply. All constraints are standard. All lines move orthogonally, don't cross themselves or other lines, and don't branch.

In this puzzle each box has its own constraint. These constraints apply to all digits in the given box and may therefore spill over into other boxes (e.g. the anti kropki in box 1 would stop r1c3 and r1c4 from being consecutive since it applies to r1c3).

Box 1: Negative Kropki

All Kropki Dots and XV sums are given. The digits between a white kropki dot must be consecutive. One digit on a black kropki dot must be double the other. An X between two digits means they add to 10, a V and they add to 5. Two adjacent digits following any of the given rules would have the respective kropki dot/XV between them.

Box 2: 3-Renban Split

You must be able to draw three 3-cell renbans entirely inside Box 2. The digits on a renban line must make a consecutive set in any order (e.g. 7-5-6).

Box 3: Anti Mod 2

No odd digit may touch another orthogonally, same for evens.

Box 4: Sudoku

Box 5: Thermo Drawing

You must be able to draw a 9-cell thermometer staying entirely within box 5. On a thermometer digits must increase from the bulb end, which is to be deduced by the solver.

Box 6: Dutch Whisper Drawing

You must be able to draw a 9-cell dutch whisper staying entirely within box 6. Part of this line is given and is orange. On a dutch whisper line adjacent digits must have a minimum difference of 4.

Box 7: Anti Knight

No digit can see itself a knight's move away from chess.

Box 8: Backwards Labeling

No cell can be in the 10-X's position in the box, where X is the digit in the cell. This is the same as reading the positions backwards, with the bottom right being 1, bottom middle 2, etc.

Box 9: Sudoku