Logic Masters Deutschland e.V.

Normal sudoku rules apply.

159: Digits in column 1 indicate the column in which the digit 1 appears in that row (e.g. if r4c1 is a 6, r4c6 is a 1). The same applies to columns 5 and 9, with the digits 5 and 9 respectively.

Region Sum Lines: Digits along a blue line have an equal sum N within each box it passes through. Different lines may have different values for N.

Have fun, leave a comment if you enjoy the puzzle!

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