Logic Masters Deutschland e.V.

• Normal sudoku rules apply.
• Cells in cages must sum to the clue given in the top left corner of the cage. All cages are horizontal or vertical rectangles.
• Aditionally, each of the killer cages acts as another type of sudoku variant, which must be deduced by its corresponding crossword clue. These variants include: Parity lines, Arrows, Thermometers, Kropki dots, XV, Renban lines, German whispers, Sandwiches and Region sum lines (definitions are listed at the end).

Crossdoku clues

ACROSS
• 14) A treasure and a half are buried in this spot.
• 23) Some islands you can eat.
• 24) The missing letter in More code.
• 34) Inside a bibliothek.
• ??) A narrow line flying east.

DOWN

• 20) A one-legged Rarity.
• 24) Just a theorem term.
• 36) Summing up, total does not change.
• 42) Roses are red - Violets are blue - Banner is purple (Is this a haiku?).

Link

• SudokuPad

Parity line: all digits along the line must have the SAME parity.

Arrow: digits along the arrow sum to the digit in the corresponding circle (to be determined).

Thermometer: digits must increase from the bulb (to be determined).

Kropki dots: digits joined by a dot must be consecutive or in a 2:1 ratio.

XV: digits joined by a X must sum 10, if they are joined by a V then they sum 5.

Renban line: digits on the line form a set of consecutive numbers (in any order).

German whispers: adjacent digits along the line must differ by at least 5.

Sandwich: it shows the sum of the digits between the 1 and 9 (not included) in the same row/column.

Region sum line: box borders divide the line into segments of equal sum.