Happy 61st

by Blobz · Difficulty 5 of 5 by Blobz

CASE 3263

Happy 61st

  • Killer cages
  • Kropki dots
  • Thermometers
  • Palindromes

The brief

Normal sudoku rules apply.

The grey line ("6") is a palindrome that reads the same in both directions.

Digits along the thermometer ("1") must increase from the bulb end.

Digits in cages sum to 13; negative constraint applies -- no unmarked dominoes sum to 13.

Digits separated by a white dot differ by 1; not all such dots are shown.

13131313131313131961