Logic Masters Deutschland e.V.

by Maya

Solve on SudokuPad

Constraints

Quattro Quadri: Place the digits 1 to 9 once each into the 3x3 boxes. Digits may not repeat in the same row, column, or box.

Renban/Region Sum Lines: The blue and purple lines must form a set of consecutive digits in any order, without repetition, and box borders divide each line into segments with the same sum.

Kropki Pairs: Cells separated by a white dot must be consecutive. Cells separated by a black dot must be in a two-to-one ratio.