Flutter-by

by Dr Logic · Difficulty 5 of 5 by Dr Logic

CASE 3278

Flutter-by

byDr Logic

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More from Dr Logic

  • Kropki dots
  • Region sum lines
  • Whisper lines
  • Renban lines

The brief

Normal Sudoku rules apply

All constraints are given as standard:

Region Sum Lines: Along blue lines, box borders divide the line into segments that all sum to the same total. This total is not necessarily the same for different lines.

Renban Lines: Digits along purple lines form a non-repeating consecutive set of digits, in any order.

German Whispers Lines: Adjacent digits along green lines must differ by at least 5.

Ratio kropki: Digits separated by black dots are in a 1:2 ratio.

Consecutive kropki: Digits separated by white dots are consecutive.

No negative constraint on dots.