Logic Masters Deutschland e.V.

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Rules:

German Whisper Lines: Two cells connected by a Green line must have a difference of at least 5.

Dutch Whisper Lines: Two cells connected by an Orange line must have a difference of at least 4.

Regional Sum Lines: Digits on the Blue line have an equal sum N within each box it passes through.

Between Lines: Digits along a between line, two circles connected by a Grey line, must be between the digits on the circled ends of the line.

Lock-out Lines: Digits along a lockout line, two diamonds connected by a Blue/greyish line, must not be between the digits on the diamond ends of the line, which have a difference of at least 4.

Even: Cells with squares must contain even numbers.

Greater than: The mathematic symbol '>' points to the lower of the two values.