Logic Masters Deutschland e.V.

Normal Sudoku rules apply.

Killer sudoku: The sum of all numbers in a cage must match the small number printed in its corner. No number appears more than once in a cage.

Thermo: The digits in the thermometer must strictly increase from the bulb to the end.

Gray circle: the digit in the cell with the grey circle must be odd.

Whispering loop: Draw a one-cell-wide loop of orthogonally or diagonally connected cells. The loop may touch itself but may not cross itself or visit one cell more than once. Cells with a white circle are part of the loop and the digit in the circle gives the number of cells of this loop segment in its box (if the loop leaves and enters the box again, those cells do not count to the sum in the circle). Adjacent digits on the loop must fulfil the German Whispers rule, that is they must differ by at least 5.

------------------------------------------

Links to puzzle:

f-puzzles

SudokuPad