Normal sudoku rules apply. Numbers outside the grid are both Sandwich Clues and X-Sum Clues. A sandwich clue shows the sum of digits between the 1 and the 9 in that row or column. An X-Sums Clue shows the sum of the first X digits, where X is the first digit, from that direction. Shaded circles are odd numbers. The grid is partially covered with fog. Placing correct digits will remove the surrounding fog.
If you prefer to play directly in sudokupad then click below.
