Tessera is a daily word square puzzle.
You get a 4×4 grid of scrambled letters. Select two letters in the same row to swap them until every row AND column spells a valid 4-letter word.
↔ KING · IDOL · SODA · SLED
↕ KISS · IDOL · NODE · GLAD
🟢 Green border = valid row
🔵 Blue bar = valid column
A new puzzle every day!