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Cryptarithms

No. of Players: 1+
Type of Game: written
What you need: pen and paper

Goal

To create or solve mathematical puzzles where digits are replaced by letters.

How to play

A cryptarithm (or alphametic) puzzle is a puzzle where words are arranged in a mathematical expression with letters substituted for numbers. The most common mathematical expression is addition, but subtraction, multiplication and division problems can be turned into a cryptarithm by replacing numbers with appropriate letters. A few rules are usually established, such as: the leading letter cannot be zero, each letter must represent a unique digit, and solutions must be unique. Players can challenge themselves by trying to create their own cryptarithm, or they can try solving cryptarithms created by others.

Examples

(1) Here is a famous cryptarithm and its solution:

cyptarithm: SEND + MORE = MONEY

Solution:

solution to cyptarithm: SEND + MORE = MONEY

(2) Can you determine the value of each letter in this well-known multiplication cryptarithm?

cyptarithm: BOB x BOB = MARLEY

Solution:

solution to cyptarithm: BOB x BOB = MARLEY

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