No logical steps found 3.. quietly doing sums
- Killer cages
- Kropki dots
- Whisper lines
- Palindromes
- Little killers
The brief
Normal sudoku rules apply. Place the digits 1-9 once each in every row, column and 3x3 box. Digits on a grey palindrome must read the same forwards as backwards. Adjacent digits along a green line must differ by at least 5. Digits in a dotted cage without repeat sum to the total given. Cells separated by a black dot has one digit double the other (1:2 ratio). Clues outside the grid sum the digits along the indicated diagonal, digits may repeat.