Logic Masters Deutschland e.V.

Normal Sudoku Rules Apply: Place the digits 1-9 once in each box, column, and row.

Additional Rules:

• Digits separated by a white dot have a difference of 1.
• Digits separated by a black dot have a ratio of 1:2.
• Colored circles contain an odd digit.

Line Instructions: Draw 5 lines in the grid that connect each pair of colored circles. Colored circles serve as start/end points for each line. All other given clues must be crossed by a line.

• Lines only move orthogonally between cells and must not touch themselves orthogonally or diagonally.
• Lines cannot share cells, cross themselves, or each other.

Each Line Uses a Different Ruleset:

• Green (R1C5 -> R9C5): German Whisper, where every two orthogonally connected cells must have a difference of at least 5.
• Peach (R1C1 -> R6C4): Entropic Line, where every run of three cells must contain a low digit (1,2,3), a middle digit (4,5,6), and a high digit (7,8,9).
• Cyan (R4C4 -> R5C9): Region Sum Line, where the sum of the digits is the same for all boxes it enters.
• Teal (R4C6 -> R9C9): Modular Line, where every run of three cells must contain a digit from (1,4,7), (2,5,8), and (3,6,9).
• Red (R6C6 -> R9C1): Odd/Even Line, where every cell changes odd/even parity.