A daily puzzle
to learn the
periodic table.

A daily deduction puzzle on the periodic table. Identify today's element in six guesses, on a stained chart-paper canvas.

Make a guess.

Type any of the 118 known elements by symbol or name. The full catalogue is open.

Read the deltas.

Six property cells reveal after each guess — mass, group, period, block, state, and metal class — each higher, lower, or match.

Six attempts.

Six guesses to pin down today's element. Tomorrow brings a new entry, shared by every player on the same UTC day.

Begin today's reading.

Free to play. Daily mode is ad-free. The Free Play mode shows a banner ad above the guess input, and a one-time Remove Ads purchase silences it entirely.