Logic Masters Deutschland e.V.

Isofill: Divide the grid into 10 regions, each with 10 orthogonally connected cells. Every cell in a region should contain the same digit. All of the digits 0-9 must appear in the grid.

Path: Draw a light blue path from the red circle to the blue circle. The path moves only orthogonally from cell to cell.

The path must visit N cells in every region in numerical order, where N is the region's digit. The circles do not count towards this rule, so the path's digits are:

RedCircle(0)1223334444...999999999BlueCircle(9)

Little Killers: Red clues outside the grid are the sum of the digits along the indicated diagonal. Digits may repeat if allowed by the other rules.

Numbered Rooms: A blue clue outside the grid indicates the digit which has to be placed in the Nth cell in the corresponding direction, where N

Kropki pairs: Digits in cells separated by a black dot are in a 2:1 ratio. Digits in cells separated by a white dot are consecutive. Not all dots are necessarily given.

The path cannot cross any dots or the two light blue XXXX walls found in the grid. The walls only block the path; they have no effect on the regions.

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