Fill the grid with digits 1–9, so that each digit appears exactly once in every row and column. All cells except those in cages must be grouped into regions consisting of orthogonally connected cells. Each region contains exactly one circle. The number inside the circle gives the number of cells in its region. No digit may repeat within any cage or any region. In addition, no two digits within the same cage or the same region may be consecutive. Allowed examples: {3,1,5}, {1}, {4,2,9,6}. Two cells joined by a white dot contain consecutive digits. If two cells are joined by a blue dot, they belong to different regions. Two cells joined by a V contain digits summing to 5. Not all possible dots or symbols are given. The arrow outside the grid gives the sum of the digits along the indicated diagonal.
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