Logic Masters Deutschland e.V.

Place 1~6 into the grid. There are exactly 6 of each digit. 3 in a row/column (no box), 2 in another row/column and 1 in the third one row/column. (the "third" is just the one differ from the previous two, not necessarily the 3rd from up/left to down/right). Every row, column and box consists of 3 digit A, 2 digit B and 1 digit C. (e.g. 111225, 432232) Same digits cannot appear 4 times or more in a single row/column/box.

Non-Kropki Dots: Grey dots are Non-Kropki dots. Digits seperated by a non-kropki dot can neither be the same, consecutive nor in 1:2 ratio. No hidden dot is inside the boxes, but dots on the border are hidden. (ie There is negative constraint inside the boxes but no negative constraint between 2 cells in different boxes.)

Slow Thermo: Digits must either stay the same or increase along thermo from the bulb end.

links: Play on CTC