Logic Masters Deutschland e.V.

Rules:

TESSELLATION
• Fill each cell with a digit from 1-9.
• Cells sharing an edge can't have the same digit.
• Each horizontal row and vertical column contains a non-repeating consecutive set of digits (like 23456) in any order.

MODULAR LINES
• Every set of three sequential digits along a line must contain a complete set of residues modulo 3, i.e. one digit from {1,4,7}, one from {2,5,8}, and one from {3,6,9}.

DOTS
• Digits joined by a black dot must be in the 1:2 ratio.
• Digits joined by a white dot must be consecutive.
• Not all dots are necessarily given.

Play online with Sudoku Pad.