{
  "id": "arrow",
  "name": "Arrow Sudoku",
  "rules": {
    "6x6": "Place a digit from 1 to 6 into each empty cell in the grid so that each digit appears exactly once in each row, column and 2x3 outlined box. The digit in each circled cell is the sum of digits along the path of its arrow. Digits can repeat within an arrow shape.",
    "9x9": "Place a digit from 1 to 9 into each empty cell in the grid so that each digit appears exactly once in each row, column and 3x3 outlined box. The digit in each circled cell is the sum of digits along the path of its arrow. Digits can repeat within an arrow shape."
  },
  "tags": ["line", "math"]
}