Mouse
- Click a cell/element to select
- Use the input UI (numbers/marks/lines) to apply
- Right click/secondary action: mark or erase (if supported)
Overview 
Crossword
크로스워드
Answer clues to fill words across and down—each letter checked by crossing entries.
A mix of vocabulary, trivia, pattern-spotting, and pure wordplay—perfect for quick breaks or deep solves.
Word PuzzleClassic
Goal & Core Rules
Fill every open square with letters so that all across and down answers match their clues.
- The grid consists of white squares (letters) and black squares (blocks).
- Each clue corresponds to an entry placed across or down starting at a numbered square.
- Letters are shared at crossings, so one answer constrains the other.
- Complete the puzzle when all entries are filled with valid answers.
Controls
Keyboard
- Number keys: enter value (if supported)
- Backspace/Delete: clear (if supported)
- Arrow keys/Tab: move focus (if supported)
Touch
- Tap: select/enter
- Long-press: mark/secondary action (if supported)
- Use the on-screen pad/buttons to input
Beginner Tips
- Start with the easiest clues and fill crossings to unlock harder ones.
- Use the grid pattern: word length and known letters narrow options fast.
- Don’t be afraid to pencil-in uncertain answers and revisit later.
Advanced Tips
- Learn common clue indicators (anagrams, abbreviations) in your puzzle style.
- For themed puzzles, hunt for the theme revealer—it explains many unusual answers.
- When stuck, switch sections: fresh crossings often break the block.
Origins & History
Modern crosswords are widely credited to journalist Arthur Wynne, who introduced an early “word-cross” puzzle in the New York World in 1913; the format then spread and diversified worldwide.
Timeline
- 1913 Arthur Wynne publishes an early crossword (“word-cross”) in the New York World.
- 1924 Simon & Schuster publishes an early bestselling crossword puzzle book series.
Notable People
- Arthur Wynne Credited with introducing the crossword format (1913)
FAQ
Do I need broad trivia knowledge?
It helps, but crossings and patterns often let you solve even unfamiliar clues.
What’s the difference between American and cryptic crosswords?
American clues are usually straightforward definitions, while cryptics combine definition plus wordplay.
Why are there black squares?
They separate entries and shape the grid, controlling word lengths and crossings.