Knights have a point
- Anti-knight
- Arrows
The brief
- Normal (irregular) 7x7 sudoku rules apply, i.e. each row, column and region has to contain the digits from 1 to 7 once each.
- Anti-Knight: Cells a knight's move (in chess) apart may not contain identical digits.
- Arrows: Digits along an arrow sum to the digit in the circle from which it emerges. (If there is no conflict with other rules, digits on an arrow may repeat.)