Oh.

“Excellent observation. This is really the key observation you need to make. Nothing more advanced (mathematically) is required.”

“I’m not telling.”

Okay, I’ll keep at it.

]]>It’s not due yet.

“(ending up with an even sum, which most of which could be written as the sum of two primes, so Sam couldn’t know that Polly couldn’t possibly know)”

Excellent observation. This is really the key observation you need to make. Nothing more advanced (mathematically) is required.

“What is it?”

I’m not telling.

]]>That’s good, considering it was assigned a while ago.

What is it? I understand the problem itself, but I’ve only been able to eliminate most combinations which are both even or both odd. (ending up with an even sum, which most of which could be written as the sum of two primes, so Sam couldn’t know that Polly couldn’t possibly know)

I tried to continue eliminating pairs, but the rest is way over my head.

]]>Maybe I should take Number Theory when I get older…

Now you have me obsessed with solving this one. Are you going to post the answer when you get it?

]]>