Normal sudoku rules apply. Digits cannot repeat within a cage. The digits in a cage sum to the 'cage total'. Along each line, the cage totals form a palindrome, reading the same from each end. eg R1c1 + r1c2 + r2c1 = r6c1 + r7c1.
Normal sudoku rules apply. Digits cannot repeat within a cage. The digits in a cage sum to the 'cage total'. Along each line, the cage totals form a palindrome, reading the same from each end. eg R1c1 + r1c2 + r2c1 = r6c1 + r7c1.