Normal Sudoku rules apply. The digits on an arrow add up to the digit in the corresponding circle. Numbers may repeat along an arrow. Each marked main diagonal cannot have a repeated digit. Ie each contains every number from 1 to 9 exactly once.
Normal Sudoku rules apply. The digits on an arrow add up to the digit in the corresponding circle. Numbers may repeat along an arrow. Each marked main diagonal cannot have a repeated digit. Ie each contains every number from 1 to 9 exactly once.