Mostly Even Primes?
- Kropki dots
The brief
Normal Sudoku rules apply. MOSTLY EVEN PRIMES- Pills each indicate a UNIQUE prime number that has 2 even digits and one odd digit. (POSSIBLE PRIMES- 241, 263, 269, 281, 283, 421, 461, 463, 467, 487, 641, 643, 647, 683, 821, 823, 827, 829, 863) KROPKI PAIRS- Numbers with a white dot between them are consecutive. Numbers with a black dot between them are in a ratio of 2:1. Not all possible dots are shown.