Normal sudoku rules apply. Cells with arrows are the Yajisan-Kazusan clues except that the valid clues give the sum of all the shaded cells in that direction (ie NOT the number of shaded cells). All other basic Y-K rules apply.
Normal sudoku rules apply. Cells with arrows are the Yajisan-Kazusan clues except that the valid clues give the sum of all the shaded cells in that direction (ie NOT the number of shaded cells). All other basic Y-K rules apply.