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by NeoTar 1378 days ago
That's likely to introduce bias because the probability of the two halves aren't equal... My initial instinct would be that the latter half would be less likely (since it has Q, X, Z), but maybe not - as a rule of thumb the most common letters are ETAOIN SHURDL - so 6 from the second half, and 6 from the first.
1 comments

They minimized bias already by splitting 12-14, see my other comment.