Rounds you cleared with the 🧠 mark (no misses, no hints) show where the ghosts are, faintly, from then on (you can turn this off in Settings; in No-× Candle Mode, only once its 🕯️ is lit). Knowing the spots and still having something to play for — that is the Diamond Challenge. The number of cells that open never changes with the order you find the ghosts in, but the more conditions a single tap completes at once, the higher the score. Row 3 in the picture holds two ghosts. Take the one inside the window of the 1 last, and the row and the window complete together and open in one go. Take it first, and the window completes on its own. Reach the proven best score with no mistakes and you earn 💎. If you get stuck, try the 💎 Hint: its first use lights the 💎 light, which tells you after every move whether your current order can still get there (it never gives away the order, and you can still earn 💎).

In the app, one new tip arrives for each day you play.

▶ Try 50 rounds in your browser A free demo, no install. All 2,000 rounds are in the app.