Logic Masters Deutschland e.V.

Click the puzzle to play

Rules:

Sandwich: The clues outside the grid give the total sum of digits that fall between the 1 and the 9 of the clue’s row or column.

Skyscrapers: Each digit in the grid represents the height of its cell. Taller cells obstruct the view of shorter ones behind them. Clues outside the grid divided by 2 give the number of cells visible from that vantage point in the clue's row or column.

Palindrome: The grey line is a Palindrome line, digits on this line must read the same forwards and backwards.

Renban: The purple line is a Renban line, digits on this line must form a non-repeating consecutive set of digits.

Even/odd: The digits on the grey squares are either all even or all odd.

Killer cages: Digits in cages do not repeat and sum to the number in the top left corner of the cage.

Thermometer: The grid contains Thermometers, digits on a thermometer increase from the bulb end.

Greater than: Inequality signs point towards the lowest digit of the two cells.