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Play Sudoku Word Search — a sudoku you solve with hidden ...
bahbahbahbah · 2026-06-18 · via Show HN

Stuck on a book puzzle?

Every puzzle in the paperback prints a short code in its bottom-left corner. Type it in for a step-by-step walkthrough that explains why at every move.

How does it work?

A Sudoku Word Search is a sudoku made of letters instead of numbers. Every row, column, and 3×3 box has the same nine letters, just like sudoku. But every row, column, and box also holds at least one letter of a hidden word, and each listed word is in the whole grid exactly once — just like a word search.

The words you must find are integral to the puzzle. At some point in solving, sudoku techniques alone aren't enough to uniquely solve it, and you'll have to add new logic based on where the hidden words must be. When ordinary sudoku logic stalls (and it will) you turn to the words: ask where a word can possibly fit, drop it in, and watch it force letters that sudoku alone could never settle.

Every puzzle is verified solvable by pure deduction — no guessing, no backtracking. Learn how to play →

Get a free sampler pack

Join the mailing list and I'll send you a free print at home sampler. You'll only receive updates when a new book lands. No spam, just new puzzles.