AND + HAD + NO = SONS
What is this puzzle?
Solve the addition alphametic puzzle where AND + HAD + NO = SONS. Each letter represents a unique digit from 0-9. No number starts with zero.
Difficulty: easy · Category: addition · Unique letters: 6
This easy-level addition alphametic puzzle features 6 unique letters (A, D, H, N, O, S). In the equation AND + HAD + NO = SONS, each letter maps to a distinct digit from 0 to 9. With only 6 of 10 digits used, 4 digits remain unused in the solution. The leading letters A and H and N and S cannot represent zero — this is your first constraint. This puzzle has 3 addends (AND + HAD + NO), making carry analysis more complex. Start from the rightmost column and work left, tracking carries between columns. As a beginner-friendly puzzle, the constraints are straightforward and the solution can be found through logical deduction without advanced techniques.
- This addition alphametic has 6 unique letters to determine.
- Leading letters: A, H, N, S. None of these can be zero.
- There are 6 unique letters, so 4 digits from 0–9 will not be used.
- Start from the rightmost column (units place) and work left, tracking carries between columns.
- With three addends, each column can produce a carry of at most 2.
- With few unique letters, you can often solve this by systematic trial and error.