271.--FIFTEEN LETTER PUZZLE.

ALE FOE HOD BGN

CAB HEN JOG KFM

HAG GEM MOB BFH

FAN KIN JEK DFL

JAM HIM GCL LJH

AID JIB FCJ NJD

OAK FIG HCK MLN

BED OIL MCD BLK

ICE CON DGK

The above is the solution of a puzzle I gave in _Tit-bits_ in the summer

of 1896. It was required to take the letters, A, B, C, D, E, F, G, H, I,

J, K, L, M, N, and O, and with them form thirty-five groups of three

letters so that the combinations should include the greatest number

possible of common English words. No two letters may appear together in

a group more than once. Thus, A and L having been together in ALE, must

never be found together again; nor may A appear again in a group with E,

nor L with E. These conditions will be found complied with in the above

solution, and the number of words formed is twenty-one. Many persons

have since tried hard to beat this number, but so far have not

succeeded.

More than thirty-five combinations of the fifteen letters cannot be

formed within the conditions. Theoretically, there cannot possibly be

more than twenty-three words formed, because only this number of

combinations is possible with a vowel or vowels in each. And as no

English word can be formed from three of the given vowels (A, E, I, and

O), we must reduce the number of possible words to twenty-two. This is

correct theoretically, but practically that twenty-second word cannot be

got in. If JEK, shown above, were a word it would be all right; but it

is not, and no amount of juggling with the other letters has resulted in

a better answer than the one shown. I should, say that proper nouns and

abbreviations, such as Joe, Jim, Alf, Hal, Flo, Ike, etc., are

disallowed.

Now, the present puzzle is a variation of the above. It is simply this:

Instead of using the fifteen letters given, the reader is allowed to

select any fifteen different letters of the alphabet that he may prefer.

Then construct thirty-five groups in accordance with the conditions, and

show as many good English words as possible.

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