← All articles

Crossword Rules & History: How It All Started

Word & Trivia · Rules & History · July 16, 2026

More than a century after its debut, the crossword is still one of the simplest ideas in puzzling: a grid, a set of clues, and the quiet satisfaction of watching words interlock.

How to Play Crossword

A crossword puzzle presents a grid of white and shaded (blocked) squares, along with a numbered list of clues split into "Across" and "Down." Each numbered clue corresponds to a numbered square in the grid, marking where that answer begins. Players fill in one letter per square, working out each answer from its clue, and because answers cross and share letters with intersecting words, correctly solved answers help confirm or reveal the letters needed for neighboring entries.

The puzzle is complete when every white square is filled and every across and down answer is correct — often confirmed instantly in a digital format like RivalPit's, where a completed grid is checked automatically and scored on speed and accuracy rather than requiring an answer key. Clues can range from straightforward definitions to wordplay and puns, depending on the puzzle's difficulty, but the core mechanic — grid, clues, intersecting answers — has stayed essentially unchanged since the format's invention.

The History of Crossword

The first crossword puzzle widely credited as the origin of the format was created by journalist Arthur Wynne and published in the New York World newspaper on December 21, 1913. Wynne, who was assembling that week's puzzle page, designed a diamond-shaped grid with a hollow center and no internal black squares, calling it a "Word-Cross Puzzle." Readers filled in the answers based on numbered clues, and the format was popular enough that the newspaper kept running it. Within a few weeks, a typesetting change (widely described as a typo) flipped the name from "Word-Cross" to "Cross-Word," and the "crossword" name stuck from there.

The puzzle format spread gradually through the 1910s, but it exploded into a nationwide craze in the United States after 1924, when the newly formed publishing house Simon & Schuster released The Cross Word Puzzle Book — the first-ever dedicated crossword puzzle book, sold with a pencil attached. The book was a runaway success, reportedly moving 150,000 copies in a single day before Christmas 1924, and it helped push crossword puzzles into nearly every American newspaper by the end of the decade. What started as one journalist's holiday filler for a puzzle page became, within about a decade, a fixture of daily print media that has never really gone away.

Why Play Crossword on RivalPit

Looking for more word challenges? Browse our roundup of word and trivia games online, and see how easy it is to play games online with friends with no download on RivalPit.

Fill in the blanks.
Jump into a live crossword on RivalPit and race friends to complete the grid — free, instant, and points-only.
Play Crossword free on RivalPit