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 Sole Prime Difference Puzzle 
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Posted on: Wed Mar 17, 2021 7:42 pm

Posts: 40
Joined: Fri Nov 01, 2019 9:33 pm
Post Sole Prime Difference Puzzle
The clues in this new style of puzzle depend on the number of primes in the two cells. A numeric clue indicates that exactly one of those numbers is prime and reveals the difference of the two numbers. A numberless clue indicates that either both or neither of those two entries are prime numbers. (Remember that 1 is not a prime!)

For a solution and more info visit: ... edoku.html


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