Rules for solving:
- Normal sudoku rules apply - Place digits 1-9 once each in every row, column and 3x3 box
- Digits separated by a white dot are consecutive, digits separated by a black dot are in a 1:2 ratio, i.e. one digit is double the other. Not all dots are given
- Adjacent digits on a green line must have a difference of at least 5
- Digits on a pink line form a set of consecutive non repeated digits in any order. For example 465 is a valid length 3 line
- Digits in grey squares are even
- Digit outside the grid (without an arrow) show how many digits are seen from that direction where larger digits block the vision of lower digits after them.
- Digits outside the grid (with an arrow) show the sum of the digits on a diagonal in the arrow's direction
Puzzle:
Solution code: Row 4 (left to right)