Logic Masters Deutschland e.V.

Place the digits 1 to 9 in every row, column, 3x3 standard block. The given ellipses corresponds to the two or three digit products of all digits along the path that the arrow travels. Products may be read forwards or backwards inside the given ellipses. If a product is given inside a black ellipse then all digits must be different within that product. If a product is given inside a blue ellipse, digits can repeat within that product without violating the non-repeating rules for a row/column/3x3 standard block.