| P | E | R | I | O | D | |
| x | I | |||||
| O | B | S | E | R | V | E |
See more puzzles containing I, OBSERVE or PERIOD.
Would you like to see the solution?
The rules for cryptarithm puzzles are simple. Each letter represents one of the digits 0 to 9. Different letters represent different digits. The first digit in a number can't be 0. Your job is to find out what digit each letter represents. Can you solve the puzzle shown here?