Equation: SO + WHOS + THE = LOSER. Each of the 8 unique letters (E, H, L, O, R, S, T, W) represents a different digit. Leading letters (S, W, T, L) cannot be zero.

S=4, O=0, W=9, H=8, T=5, E=2, L=1, R=6 → 40 + 9804 + 582 = 10426

SO + WHOS + THE = LOSER

What is this puzzle?

Solve the addition alphametic puzzle where SO + WHOS + THE = LOSER. Each letter represents a unique digit from 0-9. No number starts with zero.

Difficulty: medium · Category: addition · Unique letters: 8

This medium-level addition alphametic puzzle features 8 unique letters (E, H, L, O, R, S, T, W). In the equation SO + WHOS + THE = LOSER, each letter maps to a distinct digit from 0 to 9. With only 8 of 10 digits used, 2 digits remain unused in the solution. The leading letters S and W and T and L cannot represent zero — this is your first constraint. This puzzle has 3 addends (SO + WHOS + THE), making carry analysis more complex. Start from the rightmost column and work left, tracking carries between columns.

This addition alphametic has 8 unique letters to determine.
Leading letters: S, W, T, L. None of these can be zero.
There are 8 unique letters, so 2 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.
A moderate number of letters means you'll need logical deduction alongside trial and error.