Logic Masters Deutschland e.V.

Important Note:
This puzzle is meant to be solved by three people simultaneously. Each person will pick one of the three puzzles linked below and begin solving together communicating as you go along.

You are encouraged to not look at each other's grids or share the location of constraints during your solve. Instead communicate what digits/pencil marks you have or need.

I suggest to come up with a plan of communication before attempting the puzzle, to better enjoy it and progress more smoothly. But most importantly, have fun!

Rules: For each grid:

- Sudoku: Place the digits 1-9 once each in every row, column, and 3x3 box.

- Multi-Grid Disjoint: No two grids may contain the same digit in the same cell.
Example: if r2c2 of the killer grid is 7 then r2c2 cannot be 7 in either other grid.

- Fog The grid is mostly covered in fog. Placing the correct digits will lift the fog around the placed digit, revealing more clues.

- Modifiers: Mark one modifier cell in every row, column, and 3x3 box. The value of a modifier cell is equal to the digit in the same cell in one of the other grids.
Example: if r2c2 of the killer grid is a modifier cell, and r2c2 of the arrow grid contains 3, and r2c2 of the kropki grid contains 4; then r2c2 of the killer grid has a value of either 3 or 4.

- Modifier Disjoint: No two grids may contain modifiers in the same cell. Modifer cells contain a complete set of the digits 1-9.

Constraint Rules:

- Killer Cages: Values within a cage must sum to the number in the top-left corner of the cage, if given. Digits may not repeat in a cage but values may.

- Arrow: Values along an arrow must sum to the value in the arrow's attached circle.

- Kropki: Cells joined by a white dot must contain consecutive values. Cells joined by a black dot must contain one value that's double the other.

Solve Here:

Killer: SudokuPad
Arrow: SudokuPad
Kropki: SudokuPad