Logic Masters Deutschland e.V.

Hello. This sudoku variant has zones of different shapes, separated by thicker borders (that can be red or black, for ... reasons).

Fill it with numbers in range 1 to 10, following all the given instructions.

If you like Sudoku variants, you will love this!

Cells inside red dashed rectangles have a CONSTANT SUM, that you must guess. No sequence in a rectangle is identical to another one!

Blue cells form a PALYNDROME sequence.

Rectangle A1 to D5: KROPKI sudoku, all marks including the external RED border given. Black mark = numbers are double, White mark = consecutive.

Rectangle E1 to J5: ODD/EVEN sudoku. Cells are either green or grey; same color = same parity.

Rectangle G6 to JK: SKYSCRAPERS, black walls are transparent but you cannot see through the red walls.

Clues are referred to both sides of the enclosing rectangle, see the text.

Some cells can have arrows; "SEARCH TO 10" tips, you will find a 10 at a distance equal to the number written in that cell.

Remaining cells can have "GREATER/LESSER" markings.