How to Play Keystone
An arch of 5 word-blocks hides a secret keystone word.
- Each block is a 5-letter word with one highlighted letter. These 5 letters spell the keystone.
- Adjacent blocks share a relationship: synonym, antonym, or rhyme.
- Tap a block to see its clue and relationships. Deduce the word!
- Type your guess and hit GO. Correct answers reveal keystone letters.
Difficulty:
- Easy: 1 block pre-revealed. Synonym/antonym only.
- Normal: All relationships, no hints.
- Hard: Trickier clues.