Numbers may not repeat within cages. Within the inner 5x5 grid: Place the digits 1 to 5 such that digits do not repeat in any row or column. Considering all rows and columns as 5-digit numbers read from the direction of the clue and ranked from lowest (1) to highest (20), a clue cell represents where in the ranking that row/column lies. (The clue cells are those with grey outlines orthogonally adjacent to the row/column they rank.) There are no ties in rank. Within the rest of the 15x17 grid: Divide the grid into regions, each consisting of orthogonally connected cells. Regions cannot overlap. Fill each cell with a number that is the size of the region. Regions of the same size cannot share a cell edge.