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2008 Edition of the
Online Guide to the Engima


Preface to the Guide
History of the NPL
Membership Information
Sharing the Puzzles
      Sharing the fun
      Combining Talents
Composing
Editorial Verses
Flats
      Acrostical Enigma
      Alternade
      Ambigram
      Anagram
      Antigram
      Apt. . .
      Backswitch
      Baltimore Deletion
      Baltimore Transdeletion
      Beheadment
      Bigram. . .
      Brookline Letter-Change
      Change of Heart
      Changeover
      Charade
      Combination Padlock
      Consonantcy
      Curtailment
      Deletion
      Diastichal Enigma
      Double-Cross
      Dropout
      Enigma
      Enigmatic Rebus
      False derivative
      FWNFR
      Group flat
      Head-to-Tail Shift
      Heart Transplant
      Heteronym
      Homoantonym
      Homoconcominym
      Homonym
      Homosynonym
      Interlock
      Letter Bank
      Letter Change
      Letter Shift
      Linkade
      Literatim
      Metathesis
      Mutation
      Mynoreteh
      Order Takeout
      Overloaded. . .
      Padlock
      Palindrome
      Phonetic. . .
      Phrase Shift
      Picture. . .
      Progressive. . .
      Rebade
      Rebus
      Redro takeout
      Repeated-Letter Change
      Repeated-Letter Deletion
      Reversal
      Reversed. . .
      Riddle
      Sound Change
      Sound Shift
      Spoonergram
      Subade
      Suber
      Switchback
      Telestichal Enigma
      Terminal Deletion
      Transaddition
      Transade
      Trans-Cross
      Transdeletion
      Transpogram
      Transposal
      Trigram. . .
      Welded. . .
      Word Deletion
      Word Substitution
      Solving the Rebus
      Browse the Flat Pages
Introduction to Forms
      From A to O
      From P to Z
      Form Modifiers
Cryptograms
      Constructing Medium Crypts
      Solving Cryptograms
      Other Solving Approaches
Extras
      Solving Cryptics
      Composing Cryptics
      Observations
Reference Books
Constitution
      Bylaws
Glossary
Supplements
      Non-Guide Flats
      Non-Guide Forms
      Non-Guide Extras
      Where to Find It
      Form Notation
      Italian Picture Puzzles
      Abbreviated Guide to Flats
      Mobile Guide to Flats
      Submissions
Errata


© Copyright 2013 by
the National Puzzlers' League
 LETTER CHANGE

A specified letter is changed to make a new word or phrase. For example (a third-letter change): ONE = pastry, TWO = pantry.

FIRST-LETTER CHANGE (6)
B we’ll get some rain today
Or all my garden flowers will A.
=Brillig

The solution: A = wither, B = either. (The solution would appear as “w/e-ither.”)

Letter changes can have more than two parts. For example: ONE = boast, TWO = beast, THREE = blast.

If the last letter is being changed, the flat is called a last-letter change. For example, ONE = molts, TWO = molto is called a last-letter, instead of a fifth-letter, change.

In a reversed letter change, a letter is changed in a word or phrase and the result is then reversed to make another. For example (reversed second-letter change): ONE = twanger, TWO = regnant.

In the Brookline letter-change, a word or phrase changes each one of its letters in turn to make others. Example: BASE = rice, ONE = nice, TWO = race, THREE = rile, FOUR = rich.

BROOKLINE LETTER-CHANGE (5)
He C not to BASEWORD the girls any more;
That A of his life was now over, he swore.
But looking? To B that would leave a great E.
The very idea could make a man D.
=Mangie

The solution: BASEWORD = chase, A = phase, B = cease, C = chose, D = chafe, E = chasm.

The Brookline letter-change was introduced by Newrow (from Brookline MA) in 1991.

See also repeated-letter change.

 REPEATED-LETTER CHANGE

A word or phrase becomes another when one letter is changed to another letter wherever it appears (the letter must appear at least twice). For example: ONE = monocle, TWO = manacle.

REPEATED-LETTER CHANGE (7)
She sat in her wheelchair, in the sun,
Laughing and chatting, having fun.
She liked to PRIMAL with delicate thread,
And make lacy patterns out of her head.
She liked to read Old Testament tales
Of kings and FINALs, serpents and whales.
=Polly

The solution: PRIMAL = crochet, FINAL = prophet.

A repeated-letter change may have more than two parts. For example: ONE = skunk, TWO = stunt, THREE = sauna. In this example, the second and fifth letters are changed in ONE to make TWO; the same positions must have changed letters to form all other parts.

As is true of similar types (like the spoonergram, transposal, reversal, and letter change), the repeated-letter change must work in both directions -- that is, be reversible. For example, puffy cannot be changed to puppy, because reversing the change would produce fuffy, not the original puffy.

The repeated-letter change was introduced by WILLz in 1980.

 SOUND CHANGE

One sound is changed in a word or phrase to make another. Example: ONE = tungsten, TWO = tonguester (a last-sound change).

FOURTH-SOUND CHANGE (7, 6)
Detroit announces this year’s line:
Three compact cars all named for TWOs!
(How chic, you say? Of course!) You’ll pine
For our new Peanut. (Cheap!) Or choose
Our two-door hatchback Pea. (It’s small
But loaded!) Need more ONE, you say?
We’ve built a car to suit the tall:
Test-drive a String Bean Coupe today!
=Trazom and Uncanny

The solution: ONE = legroom, TWO = legume.

See also the discussion of what constitutes a single sound under phonetic flats.

 WORD SUBSTITUTION

A word or phrase (ONE) contains a shorter one (TWO) within it; when this is removed and another (THREE) is substituted, a new word or phrase is formed (FOUR). For example: ONE = wander, TWO = and, THREE = is, FOUR = wiser. To save space on the solution page, this may appear as “w-and/is-er.” Another example: ONE = Pandora, TWO = and/or, THREE = ark, FOUR = parka. The enumeration of all parts is given.

WORD SUBSTITUTION (10, 6, 7, 11)
   (THIRD = NI3)
Some THIRD had painted placards
Quite offensive to the SECOND
And left them, it is reckoned,
In a shop, on FOURTH, to sell.
In Araby, to sell.
A PRIMAL to the SECOND
Recommended lopping digits,
Which gave the THIRD the fidgets
(And the manager as well).
In Araby, as well.
Some changes in the wording,
Then, were managed in a hurry-
Which meant they needn’t worry
And that everything was swell.
In Araby, was swell.
=Newrow

The solution: PRIMAL = consultant, SECOND = sultan, THIRD = sign-men, FOURTH = consignment.

If the smaller parts to be substituted are at the beginnings of the words, the puzzle is an initial-word substitution. For example: ONE = pungent, TWO = pun, THREE = deter, FOUR = detergent.

If the smaller parts to be substituted are at the ends of the words, the puzzle is a final-word substitution. For example: ONE = Cleveland, TWO = land, THREE = rest, FOUR = cleverest.

In an extended word-substitution, the shorter word is replaced more than once to form new words. For example: ONE = list, TWO = is, THREE = en, FOUR = lent, FIVE = of, SIX = loft.

The word substitution was invented by Alf.