Tool to solve cryptarithms. A Cryptarithm is a numeric puzzle which consists in a mathematical equation in which letters are substituted by digits to recover.

Cryptarithm Solver - dCode

Tag(s) : Number Game,Arithmetics

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Tool to solve cryptarithms. A Cryptarithm is a numeric puzzle which consists in a mathematical equation in which letters are substituted by digits to recover.

Alphametics solving involves deduction and use of calculation tricks. Usually, one has to remember the rules:

- Each letter can be associated to only one digit and reciprocally each digit can be associated to only one letter

If your calculation do not follow this rule, then use the missing numbers solver.

- Numbers do not have leading zeros

One has to check for particular cases such as addition/subtraction with 0 or 9

??A+??A=??A then A is 0, idem for ??A+??B=??B

?A?+?A?=?A? then A is 0 or 9, same for ?A?+?B?=?B?

One can the seek for first numbers of last ones

???+???=A??? then A is 1 because it is impossible that the sum of 2 numbers less than 1000 is superior to 1999.

Seek for multiplication by 0, 1 or 5

Seek for divisions by 1 ou 5

Make attempts when there are few possibilities

etc.

dCode solver allow usual operators like additions +, subtractions -, multiplications * and divisions /. It also handles logical conditions like && = ET, || = OU and also comparators superior and inferior > and <.

The solver takes for unknown between 1 and 10 distinct letters.

A+A=B && B*C=AB is solved with 2+2==4 && 4*6==24

DCODE+CODING=SOLVED => 92095+209764==301859.

This alphametic solver uses a brute-force method, this means that it tries all combinations and displays the possible ones.

A cryptarithm is a number puzzle representing an arithmetical equation in which some or all of its digits has been replaced by letters or symbols. The goal is to find to which letter is corresponds. Alphametics is also used when the letters forms a real word.

It is the most known example, published in 1924 in Strand Magazine, by Henry Dudeney : S E N D + M O R E = M O N E Y . Solution is O=0, M=1, Y=2, E=5, N=6, D=7, R=8, and S=9.

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Source : http://www.dcode.fr/cryptarithm-solver

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