Logic Masters Deutschland e.V.

Place the digits 1 through 9 once into each row, column, and 3x3 box. Cells a knight's move apart may not contain the same digit. Digits in a cage cannot repeat and must sum to the given total.

The grid contains five non-overlapping 3x3 magic squares (in which the digits 1 through 9 appear once each, and each row, column, and diagonal sums to the same total).

Online solvers: CTC, f-puzzles