Oxygen
by FullDeck and Missing a Few Cards
GAS
- Killer cages
- Thermometers
- Thermo
The brief
A breath of fresh air in the world of deadly hard sudoku ... the GAS that keeps you going! Normal 8x8 sudoku rules: every row, column, and box must contain a complete set of the digits 1-8. Normal killer cages: digits within a cage cannot repeat and must sum to the number shown in the upper left (in this puzzle, always to 8). Digits on thermometers must increase from bulb to tip. Thermometers: digits on thermometers must increase from bulb to tip.