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Trial and error https://www.calcudoku.org/forum/viewtopic.php?f=2&t=65 
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Author:  starling [ Wed Oct 12, 2011 11:58 pm ] 
Post subject:  Re: Trial and error 
sneaklyfox wrote: starling wrote: 3 contains only 1's and 3's, so there are 2 combinations in a 2 cell cage, and 2 in a 3 cell cage. Actually 3 contains 1's, 2's and 3's. Yeah, for some reason the twos didn't ring right when I was typing that. Still, though, it's just 6 combinations in a 2 cell, and 12 in a 3 cell. Just for the sake of comparing, it does make more sense to do permutations, as that's what I did with the bitwise (And I now realize I've been using the technically incorrect word "combinations" this whole time. Oops.). Regardless, doing both of those yields far more solutions for almost any mod cage than a similar bitwise cage. 
Author:  sneaklyfox [ Thu Oct 13, 2011 2:26 am ] 
Post subject:  Re: Trial and error 
starling wrote: Yeah, for some reason the twos didn't ring right when I was typing that. Still, though, it's just 6 combinations in a 2 cell, and 12 in a 3 cell. Just my point about careless mistakes which I do plenty of... well, now we're kind of even... hehe... 
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