Piercing the Bubbles
by FullDeck and Missing a Few Cards Open on SudokuPad
Heartburn
- Arrows
- Molecules
The brief
Normal Sudoku rules apply: Each row, column, and box must contain a complete set of the digits 1-9. Arrows: Digits along the shaft of an arrow sum to the value shown in the attached circle. MOLECULES: Cells containing digits from 1-5 are always electrons. Cell containing digits from 6-9 may also be electrons but are not required to be electrons. The digits in electron cells on each atom (pink circle) sum to 8.