Logic Masters Deutschland e.V.

-Normal Sudoku rules apply
-Every gold line has exactly two of the following constraints:
   a. Dutch whisper line
   b. Renban line
   c. Ten line
   d. Region sum line
   e. Nabner line
   f. Entropic line
- Every constraint occurs on exactly two gold lines
- No two gold lines share the same combination of constraints
- On every gold line, the sum of the digits is an integer multiple of 5
- Digits separated by a black V sum to 5. All V's are given
- The sum of the digits on the negative slope diagonal (R1C1 - R9C9) is an integer multiple of 5

Play on SudokuPad

For defintions see below



Definitions:
Dutch whisper line: neighbouring digits differ by at least 4
Renban line: contains a set of nonrepeating consecutive digits in any order
Ten line: line can be broken into one or more non-overlapping contiguous groups of digits that sum to ten
Region sum line: box borders divide the line in segments. The sum of the digits in a segment is the same for all segments
Nabner line: No two digits on a nabner line may be the same or consecutive
Entropic line: every three consecutive cells along the line must contain a low digit (1,2,3), a middle digit (4,5,6) and ahigh digit (7,8,9).