# Cold and Warm riddle

Starting with ‘COLD’, change one letter at a time until you have the word ‘WARM’.

Each change leaves the other letters in their original places and must result in a proper word.

What is the minimum number of steps required to achieve this change?

Minimum number of steps: **4 **(as each letter has to change at least once.)

COLD -> CO**R**D -> **W**ORD -> WOR**M** -> W**A**RM

OR

COLD -> CORD -> WORD -> WARD -> WARM

OR

COLD -> CORD -> CARD -> WARD -> WARM

### Your Answer

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