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The trifid cipher is a classical cipher invented by Félix Delastelle and described in 1902. [1] Extending the principles of Delastelle's earlier bifid cipher, it combines the techniques of fractionation and transposition to achieve a certain amount of confusion and diffusion: each letter of the ciphertext depends on three letters of the plaintext and up to three letters of the key.
3 points: B ×2, P ×2, M ×1; 4 points: H ×3, F ×2, V ×2, W ×2, Y ×2; 5 points: K ×3; 8 points: J ×1; Absent in both the original and standard set of Afrikaans are the letters C, Q, X, and Z. The infrequent X and Z may still be represented by the use of a blank, yet the letters C and Q, not used in Afrikaans but only in a few loanwords ...
The child stands at a table with five tiles mounted on tracks, each displaying a different letter. These tracks are arranged into three connected rows with space for three letters each on the top/bottom rows and two in the middle. The parent calls out a three-letter word, and the child must move the letters to spell it out on the bottom row.
If played with Scrabble tiles, the game of Anagrams can use their letter values for scoring. Other scoring systems include: Simple letter count. The most tiles win. Simple word count. The most words win. Add letter point values, using Scrabble letter values. Remove one or two letters from each word and count the remaining tiles, rewarding ...
If the letters are not on the same row or column, replace them with the letters on the same row respectively but at the other pair of corners of the rectangle defined by the original pair. The order is important – the first letter of the encrypted pair is the one that lies on the same row as the first letter of the plaintext pair.
A celery rib is one of the individual stems that make up the larger bunch of celery, or "stalk." In botanical terms, a rib is a single segment of the plant, and in culinary usage, it is the part ...
Both the width of the rows and the permutation of the columns are usually defined by a keyword. For example, the keyword ZEBRAS is of length 6 (so the rows are of length 6), and the permutation is defined by the alphabetical order of the letters in the keyword. In this case, the order would be "6 3 2 4 1 5".
In the letter, Routh says he had “unlimited time and funds to travel to D.C. Qatar, Gaza, or anywhere else to deliver the new hostages” — an odd claim given the fact he is likely to be ...