How do you solve a backward crossword?
Look for an answer to one of the clues, reading left to right for Across or top to bottom for Down. Its letters stay. If there is a square immediately before or after that answer, it must become black: that is where the word stops. A solved clue tells you where to put a boundary.
Here is a real puzzle from our generator. The Across clue “Photo that sees your skeleton (4)” gives XRAY at the end of the top row. The extra A before it must go. So must the letter in the opposite corner, because black squares come in half-turn pairs.
All the letters
One answer, two black squares
The restored crossword
In the player, Black out toggles a square between ink and its original letter. Keep letter adds an optional green reminder. Cross off clues as you use them; these are your notes, so they do not reveal where an answer belongs. You win when the black-square pattern is correct, even if you leave the remaining letters and clues unmarked.
What does the symmetry tell you?
Imagine turning the board upside down. The black squares must land on black squares, although the letters need not match. Top left pairs with bottom right; a square one row down and two columns in pairs with the one equally far in from the opposite corner. The dotted ring in our player points to that partner when you hover over or focus a square. You still decide what to mark.
Every square except the center belongs to a pair. An odd number of black squares means the center must be black; an even number means it must stay white. Check the counter before you solve a clue.
A letter you need for a Down answer also protects it from being blacked out for an Across guess. Follow those crossings when two nearby words look tempting. Short scraps between blocks can belong to a word running the other way, so not every visible fragment is a separate answer.
How are these backwards puzzles built?
We build a filled crossword from our own word and clue collection, replace its black squares with camouflage letters, then shuffle each clue list separately. Each intended answer is checked to appear exactly once in its stated direction. A fill or camouflage roll that fails that check is discarded.
| Grid | Hidden black squares | Clues | Answer lengths |
|---|---|---|---|
| Small 5×5 | 4–6 | 6–10 | 3–5 letters |
| Medium 7×7 | 10–13 | 10–16 | 3–7 letters |
| Big 9×9 | 22 | 18–23 | 3–7 letters |
Calculated from all 13 grid patterns used by this game; these ranges update when the pattern library changes.
This is our gentler take: answer lengths and the exact block count are supplied. The camouflage is sampled automatically, rather than painstakingly planted by a setter to make false answers. There is no hidden message in the removed letters. Answers stop at seven letters in the larger grids; long phrases would expose too much of a small pattern. Our construction guide explains the word curation and device-based repeat memory.
Use Check to flag mistakes in squares you have marked. It leaves untouched squares for you to work out. Undo and Clear marks let you rethink; revealing a square or the whole pattern means that puzzle will not increase your solved count, even if you clear it and finish again.
Printable backwards crosswords: bring an eraser
These make a good shared pencil puzzle: one person tackles the clues while the other checks the opposite squares. Shade lightly until both agree. The PDF pack above gives each puzzle a full page, with an unnumbered letter grid, shuffled clues and little boxes to tick. The optional answer key shows the restored crossword on separate final pages, so it can stay with the puzzle-club host. For paper sizes and pack options, see our printing guide.
Backwards, Backwords, or a word search?
“Backwards” is the magazine name for this block-restoring idea. Puzzler’s guide also lists Back to Front, Backtrack, Backwords and Black-Out. We call ours Backward Crossword; our puzzles and clues are generated here, independently of that publisher. Answers read normally, never in reverse.
Our word search crosswords also hide a crossword in a full letter grid, but you finish those by finding and circling each answer. Here you restore the spaces between them. In a fill-in crossword, the black-square pattern is already supplied and you place the words. Pick whichever missing piece you feel like finding today.