Logic Masters Deutschland e.V.

Happy to present another collection of 6x6 puzzles, following up on Trinity and Duality.

I tried to order the puzzles by increasing difficulty. They are around the same range as the two previous packs.

Please find detailled rules and links to SudokuPad below the images. Happy solving :-)

Puzzle 2 is inspired by Malrog
Puzzle 5 is inspired by KNT
Puzzle 6 is inspired by ICHTUES

Once again, big thanks to lerroyy for testing all the puzzles!






1) Edge Sums

● Normal 6x6 sudoku rules apply.
● A number (possibly two-digit) outside the grid is the sum of the first X cells in the corresponding row/column, where X is the digit in the cell nearest to the clue.
● Digits joined by an X sum to 10. Digits joined by a V sum to 5.
● Numbers joined by the black dot are in a 1:2 ratio.
● The gray square contains an even number.


2) Barbados

● Normal 6x6 sudoku rules apply.
● The gray square contains an even digit.
● Digits joined by a white dot are consecutive. Not all dots are given.
● Each cell containing a circle is the head of a parity snake, whose length is the digit in the circle. A parity snake is a non-branching one-cell-wide path of orthogonally connected cells of the same parity, which may not orthogonally touch itself or other cells of matching parity. A snake may not have two heads, and may be a single cell.


3) Mean Mini Region Sums

● Select six digits from 0-9 and place them once each in every row, column and box.
● Digits joined by a white dot are consecutive. Not all dots are given.
● Box borders divide each blue line into segments with the same sum.


4) Skyscraper Lines

● Normal 6x6 sudoku rules apply.
● Digits in the grid represent skyscrapers of that height. Higher skyscrapers obscure smaller or equally high skyscrapers.
● A digit on an end of a line indicates the number of visible skyscrapers along the line (not including itself) from that digit's direction of view.

Example of a valid Skyscraper Line:



5) Chaotic Vision

● Divide the grid into regions, each consisting of six orthogonally connected cells. Each row, column and region contains the digits 1-6 once each.
● The digit N in a circle indicates that the first N cells in the direction of the arrow are in the same region as the cell with the circle. The N+1th cell is in a different region (however, this is obsolete in case the Nth cell is directly next to the grid border and therefore there is no N+1th cell).


6) COMO

● Place every digit from 0-6 exactly 5 times into the grid such that there are no repeats in any row, column or box. r3c4 remains without any digit.
● Digits joined by a black dot are in a 1:2 ratio. Not all dots are given.
● The gray circle contains an odd digit (0 is considered even).
● Neighbouring digits on the green line have a difference of at least 3.
● Divide the gray line into non-overlapping segments, each of which sums to 10.
● Box borders divide the blue line into segments with the same sum.
● The pink line (in column 5) contains a sequence of consecutive digits, which can be in any order.
● On the lavender line, each pair of digits an equal distance from the centre has the same sum.