Logic Masters Deutschland e.V.

Normal sudoku rules apply. Digits cannot repeat along the marked diagonal line. Outside the grid are little killer clues indicating the sum of the cells on that diagonal, digits can repeat if allowed by other rules. On a thermometer, digits increase from bulb to tip. Digits in cages sum to the total in the corner. Cells connected by a white dot are consecutive, not all dots are given. On the blue line, the difference of adjacent cells is 1 or 2.

Links:

CTC
F-Puzzles