Logic Masters Deutschland e.V.

• Tessellation rules:
• Place digits from 1-9 in each square and octagonal cell.
• Cells sharing an edge can't have the same digit.
• Each horizontal row and vertical column contains a non-repeating consecutive set of digits in any order.
• Dutch Flatmates: Every 5 in the grid must have a 1 directly above it, or a 9 directly below it. It may have both, but it doesn't need both.
• Lines are palindromes: their digits read the same in either direction.

Online in Sudokupad

See also:

• Dutch Flat Mates (Tessellation)
• i dreamt of electric sheep
• i wouldn't want to be like you
• el quinto sol