1. Sudoku.
Place the digits 1-9 in every row, column and box exactly once each.
2. Region sum lines.
Digits on the blue lines have an equal sum in each box through which the line passes.
3. Killer cages.
Digits in cages sum to the total given in the corner.
4. Diagonals.
Digits on the given diagonals do not repeat.
5. Clones.
Shaded groups of the same shape and shading are clones. Shapes (and thus corresponding digits) can be rotated, but are never mirrored or moved between clones.
Click to play on Sudokupad: Quadripus
Solution code: Box 5, left to right, top to bottom (Total 9 digits)