Logic Masters Deutschland e.V.

Place the digits 1 to 5 in every row and column, with no repeats.

Each black square represents a killer cannon, which defines a killer cage made up of orthogonally connected cells. The sum of the digits in the killer cage equals the product of the two digits adjacent to the black square. Digits may not repeat within a cage. The exact shape of each cage is not given and must be determined by the solver. Cages do not overlap.

Each of the three killer cannons lies on the border of one of the three cages. Each cage has exactly one killer cannon on its border, and each killer cannon belongs to one and only one cage.

Some cells contain arrows, which point in a direction. The digit in the arrow cell indicates how many cells in killer cages lie in that direction, including the cell with the arrow itself. All cells with arrows are part of killer cages.

Sudokupad link: Click the image above.