Logic Masters Deutschland e.V.

Rules:

• Classic Sudoku: Every row, column and 3x3 box must contain every number from 1 to 9.
• Region Sum Lines: Box borders divide a blue line into multiple segments which have the same sum. Different lines may have different sums.
• Entropic Lines: Every sequential group of 3 cells on a peach line must have a low digit {1,2,3}, a medium digit {4,5,6}, and a high digit {7,8,9}.
• Palindrome Lines: Digits along a grey line read the same backwards and forwards.
• Kropki: Digits separated by a white dot are consecutive; digits separated by a black dot have a 1:2 ratio.